Showing posts with label Class 8 sst. Show all posts
Showing posts with label Class 8 sst. Show all posts

Tuesday, 15 September 2015

Class 8th: Ch 3 Mineral and Power Resources Geography



Class 8th: Ch 3 Mineral and Power Resources Geography

Excercises

1. Answer the following questions.

(i) Name any three common minerals used by you everyday.

Answer

Salt, Gold and Copper are three common minerals used everyday

(ii) What is an ore? Where are the ores of metallic minerals generally located?

Answer

Rocks from which minerals are mined are known as ores. For any material to be called ore of any mineral, it must contain minimum adequate quantity of that mineral so that it can be extracted profitably.

(iii) Name two regions rich in natural gas resources.

Answer

Russia and Norway are the two regions rich in natural gas resources.

(iv) Which sources of energy would you suggest for

(a) Rural areas
(b) Coastal areas
(c) Arid regions

Answer

(a) Biogas energy for rural areas
(b) Hydel and tidal energy for coastal areas
(c) Wind and solar energy for arid regions

(v) Give five ways in which you can save energy at home.

Answer

Five ways in which energy can be saved at home:
→ Switching off lights, fans and other electrical appliances when not in use
→ By seeing to it that electrical devices are operating efficiently; for example, defrosting refrigerator regularly and not keeping the refrigerator door open for longer than necessary
→ Using energy-efficient devices such as fluorescent bulbs and tubes
→ Using energy efficiently while cooking; for example, keeping the lids of pans on while cooking
→ Unplugging electrical devices when not in use prevents leakage of electricity; thus saving energy.

2. Tick the correct answer.

(i) Which one of the following is nota characteristic of minerals?
(a) They are created by natural processes.
(b) They have a definite chemical composition.
(c) They are inexhaustible.
(d) Their distribution is uneven.
(c) They are inexhaustible.

(ii) Which one of the following is nota producer of mica?
(a) Jharkhand
(b) Karnataka
(c) Rajasthan
(d) Andhra Pradesh
 (b) Karnataka

(iii) Which one of the following is a leading producer of copper in the world?
(a) Bolivia
(b) Ghana
(c) Chile
(d) Zimbabwe
(c) Chile

(iv) Which one of the following practises will not conserve LPG in your kitchen?
(a) Soaking the dal for some time before cooking it.
(b) Cooking food in a pressure cooker.
(c) Keeping the vegetables chopped before lighting the gas for cooking.
(d) Cooking food in an open pan kept on low flame.
(d) Cooking food in an open pan kept on low flame.

3. Give reasons.

(i) Environmental aspects must be carefully looked into before building huge dams.

Answer

Environmental aspects must be carefully looked into before building huge dams because of the following reasons -
→ Dams create imbalance in the earth’s equilibrium.
→. Deforestation leads to environmental pollution.
→ People become displaced.
→ Cities / villages / towns may require shifting causing lot of hardships for the people.
→ Flood threats loom large.
→ Earthquake threats
→ Silting of lakes is a problem.

(ii) Most industries are concentrated around coal mines.

Answer

Coal is used as a source of energy and power and also as a raw material in most of the industries. Hence most industries are concentrated around coal mines of the purpose saving cost of transportation of coal (cost effectiveness).

(iii) Petroleum is referred to as “black gold”.

Answer

Petroleum is referred to as “black gold” because it is black in colour in the crude form and its derivatives are extremely valuable as petroleum itself. Today it is almost inevitable in our day-to-day life. A variety of products like – kerosene, diesel, petrol, wax, plastics, lubricants etc. are produced from these mineral resources.

(iv) Quarrying can become a major environmental concern.

Answer

Quarrying can become a major environmental concern because of the following reasons:
→ It may destroy the humus of soil which is much required for the growth of plants and crops.
→It produces a lot of noise pollution due to use of explosives at times in order to break the huge chunks of rocks.
→ In the process of quarrying lot of dust is generated which causes air pollution and also occupational hazards.
→ Blasting done in the process of quarrying generate vibration which damage in the nearby buildings, dams or any other similar structure.

4. Distinguish between the following.

(i) Conventional and non-conventional sources of energy
Conventional sources of energy
Non-conventional sources of energy
Have been in common use for a long time
Are not commonly used
Are generally exhaustible
Are generally inexhaustible
Are mostly polluting
Are mostly non-polluting
Example: Firewood, coal
Example: Solar energy, nuclear energy

(ii) Biogas and natural gas
Biogas
Natural gas
Formed using organic wastes such as dead plant and animal matter, animal dung and kitchen waste
Found along with petroleum deposits and gets released when crude oil is brought to the surface
Is a non-conventional source of energy
Is a conventional source of energy
Is easily available, especially in rural areas
Is not easily available; very few countries have sufficient natural gas reserves of their own
Is polluting; causes greenhouse effect as it releases carbon dioxide
Is a cleaner fuel
Used as a domestic fuel for cooking and lighting
Used as a domestic fuel as well as an industrial fuel

(iii) Ferrous and non-ferrous minerals
Ferrous mineral
Non-ferrous mineral
A metallic mineral that contains iron
A metallic mineral that does not contain iron
Example: Iron ore, manganese
Example: Gold, silver


(iv) Metallic and non-metallic minerals
Metallic mineral
Non-metallic mineral
A mineral containing metal in raw form
A mineral not containing metal
Example: Bauxite, iron ore
Example: Limestone, gypsum

Wednesday, 4 February 2015

Important questions National Movement Class 8 SST



Important Questions  National Movement
Write a note about Jalianwala Bagh Massacre in about 100 Words?
On 10 April 1919, two nationalist leaders- Dr Saifuddin Kitchlew and Dr Satya Pal were arrested in Punjab. On 13 April 1919, people gathered in a small park in Amritsar which was called the Jalllianwala Bagh, to protest against these arrests. The peaceful gathering was attended by men, women and children. General Dyer, a British military officer, stationed a regiment of soldiers at the only entrance of the park, declared the meeting illegal and without warning ordered his soldiers to fire. The firing lasted for ten minutes, till all the ammunition was exhausted. More than a thousand people were killed and over twice that number wounded.
The massacre inflamed the anger of the Indians. After the massacre, General Dyer said that he had ordered his troops to fire to teach the Indians a lesson. This added fuel to the fire. There were widespread protests. Rabindranath Tagore renounced his knighthood I protest. All nationalist leaders condemned this shameful act. The government leaders martial law in Punjab and resorted to inhuman cruelties to stem the rising tide of protests. People were tortured and newspapers were banned. However, all this strengthened people’s determination to fight against oppression.
What was Simon Commission and why did Indians opposed it?
In November 1927, The british appointed simon commision to look after the working of the govt. of India Act, 1919 and to suggest changes. But they were consisted only of Englishmen, without a single Indian representative. And its terms of reference did not hold out hopes of anything remotely like swaraj. Therefore in the congress session held in december 1927 in madras, a resolution was passed, demandinf for complete independence. They also, thus resloved to boycott the simon commision. We have lost great leaders like Lala lajpat Rai.
Why did Gandhiji choose to break the salt law?
Answer: Mahatma Gandhi and other nationalist leaders argued that salt was an essential item of our food and hence it was wrong to impose a tax on salt. Moreover, the issue of salt affected all; the rich and poor; alike. Hence, Gandhiji choose to break the salt law.
How was the politics of the Radicals within the Congress different from that of the Moderates?
Answer: They criticized the Moderates for their “policy of prayers”. They argued that people should not believe on the so called good intentions of the government and must fight for swaraj. They wanted to explore radical methods to ensure freedom.
The Radicals were different from the Moderates in many ways.
Moderates-
  • They were in favour of English rule in India
  • They believed in pleading before the English govt for reforms
Radicals-
  • They were against the English rule in India
They were in favour of strikes and boycott to remove British from India.

Thursday, 29 January 2015

Class 8 SST The Judiciary Criminal Justice Notes Summary

The Judiciary

In India we have the rule of law. Laws are applied equally to all persons and that a certain set of fixed procedures need to be followed when a law is violated. To enforce this rule of law, we have a judicial system that consists of the mechanism of courts that a citizen can approach when a law is violated. As an organ of the State, the judiciary plays a crucial role in the functioning of India’s democracy. It can play this role only because it is independent.

Role of the Judiciary

Courts take decisions on a very large number of issues. Broadly speaking, the work that the judiciary does can be divided into the following:
Dispute Resolution: The judicial system provides a mechanism for resolving disputes between citizens, between citizens and the government, between two state governments and between the centre and state governments.
Judicial Review: As the final interpreter of the Constitution, the judiciary also has the power to strike down particular laws passed by the Parliament if it believes that these are a violation of the basic structure of the Constitution. This is called judicial review.
Upholding the Law and Enforcing Fundamental Rights: Every citizen of India can approach the Supreme Court or the High Court if they believe that their Fundamental Rights have been violated.
Independent Judiciary
The control that the politician holds over the judge does not allow for the judge to take an independent decision. This lack of independence would force the judge to make all judgments in favour of the politician. Although we often hear of rich and powerful people in India trying to influence the judicial process, the Indian Constitution protects against this kind of situation by providing for the independence of the judiciary.
One aspect of this independence is the ‘separation of powers’. This is a key feature of the Constitution. What this means here is that other branches of the State-like the legislature and the executive – cannot interfere in the work of the judiciary. The courts are not under the government and do not act on their behalf.
For the above separation to work well, it is also crucial that all judges in the High Court as well as the Supreme Court are appointed with very little interference from these other branches of government. Once appointed to this office, it is also very difficult to remove a judge.
It is the independence of the judiciary that allows the courts to play a central role in ensuring that there is no misuse of power by the legislature and the executive. It also plays a crucial role in protecting the Fundamental Rights of citizens because anyone can approach the courts if they believe that their rights have been violated.

Structure of Courts in India

There are three different levels of courts in our country. There are several courts at the lower level while there is only one at the apex level. The courts that most people interact with are what are called subordinate or district courts. These are usually at the district or Tehsil level or in towns and they hear many kinds of cases. Each state is divided into districts that are presided over by a District Judge. Each state has a High Court which is the highest court of that state. At the top is the Supreme Court that is located in New Delhi and is presided over by the Chief Justice of India. The decisions made by the Supreme Court are binding on all other courts in India.
Different Branches of the Legal System
In addition to criminal law, the legal system also deals with civil law cases.
Following table signifies the differences between criminal and civil law.
judiciary
Access to the Courts
In principle, all citizens of India can access the courts in this country. This implies that every citizen has a right to justice through the courts. The courts play a very significant role in protecting our Fundamental Rights. If any citizen believes that their rights are being violated, then they can approach the court for justice to be done. While the courts are available for all, in reality access to courts has always been difficult for a vast majority of the poor in India. Legal procedures involve a lot of money and paperwork as well as take up a lot of time. For a poor person who cannot read and whose family depends on a daily wage, the idea of going to court to get justice often seems remote.
For the common person, access to courts is access to justice. The courts exercise a crucial role in interpreting the Fundamental Rights of citizens.
However, there are also court judgments that people believe work against the best interests of the common person. For example, activists who work on issues concerning the right to shelter and housing for the poor believe that the recent judgments on evictions are a far cry from earlier judgments. While recent judgments tend to view the slum dweller as an encroacher in the city, earlier judgments (like the 1985 Olga Tellis vs. Bombay Municipal Corporation) had tried to protect the livelihoods of slum dwellers.

Amend Education Academy The Judiciary
In India we have the rule of law. Laws are applied equally to all persons and that a certain set of fixed procedures need to be followed when a law is violated. To enforce this rule of law, we have a judicial system that consists of the mechanism of courts that a citizen can approach when a law is violated. As an organ of the State, the judiciary plays a crucial role in the functioning of India’s democracy. It can play this role only because it is independent.
Role of the Judiciary
Courts take decisions on a very large number of issues. Broadly speaking, the work that the judiciary does can be divided into the following:
Dispute Resolution: The judicial system provides a mechanism for resolving disputes between citizens, between citizens and the government, between two state governments and between the centre and state governments.
Judicial Review: As the final interpreter of the Constitution, the judiciary also has the power to strike down particular laws passed by the Parliament if it believes that these are a violation of the basic structure of the Constitution. This is called judicial review.
Upholding the Law and Enforcing Fundamental Rights: Every citizen of India can approach the Supreme Court or the High Court if they believe that their Fundamental Rights have been violated.
Independent Judiciary
The control that the politician holds over the judge does not allow for the judge to take an independent decision. This lack of independence would force the judge to make all judgments in favour of the politician. Although we often hear of rich and powerful people in India trying to influence the judicial process, the Indian Constitution protects against this kind of situation by providing for the independence of the judiciary.
One aspect of this independence is the ‘separation of powers’. This is a key feature of the Constitution. What this means here is that other branches of the State-like the legislature and the executive – cannot interfere in the work of the judiciary. The courts are not under the government and do not act on their behalf.
For the above separation to work well, it is also crucial that all judges in the High Court as well as the Supreme Court are appointed with very little interference from these other branches of government. Once appointed to this office, it is also very difficult to remove a judge.
It is the independence of the judiciary that allows the courts to play a central role in ensuring that there is no misuse of power by the legislature and the executive. It also plays a crucial role in protecting the Fundamental Rights of citizens because anyone can approach the courts if they believe that their rights have been violated.
Structure of Courts in India
There are three different levels of courts in our country. There are several courts at the lower level while there is only one at the apex level. The courts that most people interact with are what are called subordinate or district courts. These are usually at the district or Tehsil level or in towns and they hear many kinds of cases. Each state is divided into districts that are presided over by a District Judge. Each state has a High Court which is the highest court of that state. At the top is the Supreme Court that is located in New Delhi and is presided over by the Chief Justice of India. The decisions made by the Supreme Court are binding on all other courts in India.
Different Branches of the Legal System
In addition to criminal law, the legal system also deals with civil law cases.
Following table signifies the differences between criminal and civil law.
judiciary
Access to the Courts
In principle, all citizens of India can access the courts in this country. This implies that every citizen has a right to justice through the courts. The courts play a very significant role in protecting our Fundamental Rights. If any citizen believes that their rights are being violated, then they can approach the court for justice to be done. While the courts are available for all, in reality access to courts has always been difficult for a vast majority of the poor in India. Legal procedures involve a lot of money and paperwork as well as take up a lot of time. For a poor person who cannot read and whose family depends on a daily wage, the idea of going to court to get justice often seems remote.
For the common person, access to courts is access to justice. The courts exercise a crucial role in interpreting the Fundamental Rights of citizens.
However, there are also court judgments that people believe work against the best interests of the common person. For example, activists who work on issues concerning the right to shelter and housing for the poor believe that the recent judgments on evictions are a far cry from earlier judgments. While recent judgments tend to view the slum dweller as an encroacher in the city, earlier judgments (like the 1985 Olga Tellis vs. Bombay Municipal Corporation) had tried to protect the livelihoods of slum dwellers.
Understanding Our Criminal Justice System
When we see someone violating the law, we immediately think of informing the police. After a person is arrested, it is a court of law that decides whether the accused person is guilty or not. According to the Constitution, every individual charged of a crime has to be given a fair trial.
Role of the Police in Investigating a Crime
One important function of the police is to investigate any complaint about the commission of a crime. An investigation includes recording statements of witnesses and collecting different kinds of evidence. On the basis of the investigation, the police are required to form an opinion. If the police think that the evidence points to the guilt of the accused person, then they file a charge-sheet in the court. It is not the job of the police to decide whether a person is guilty or innocent, that is for the judge to decide.
Everyone is subject to the law of the land. This includes the police. Therefore, police investigations always have to be conducted in accordance with law and with full respect for human rights. The Supreme Court has laid down guidelines that the police must follow at the time of arrest, detention and interrogation. The police are not allowed to torture or beat or shoot anyone during investigation. They cannot inflict any form of punishment on a person even for petty offences.
Article 22 of the Constitution and criminal law guarantee to every arrested person the following Fundamental Rights:
• The Right to be informed at the time of arrest of the offence for which the person is being arrested.
• The Right to be presented before a magistrate within 24 hours of arrest.
• The Right not to be ill treated or tortured during arrest or in custody.
• Confessions made in police custody cannot be used as evidence against the accused.
• A boy under 15 years of age and women cannot be called to the police station only for questioning.
Role of the Public Prosecutor
A criminal offence is regarded as a public wrong. What is meant by this is that it is considered to have been committed not only against the affected victims but against society as a whole.
In court, it is the Public Prosecutor who represents the interests of the State. The role of the Prosecutor begins once the police has conducted the investigation and filed the charge-sheet in the court. He/she has no role to play in the investigation. The Prosecutor must conduct the prosecution on behalf of the State. As an officer of the court, it is his/ her duty to act impartially and present the full and material facts, witnesses and evidence before the court to enable the court to decide the case.
Role of the Judge
The judge is like an umpire in a game and conducts the trial impartially and in an open court. The judge hears all the witnesses and any other evidence presented by the prosecution and the defense. The judge decides whether the accused person is guilty or innocent on the basis of the evidence presented and in accordance with the law. If the accused is convicted, then the judge pronounces the sentence. He may send the person to jail or impose a fine or both, depending on what the law prescribes.
Meaning of Fair Trial
Article 21 of the Constitution, that guarantees the Right to Life, states that a person’s life or liberty can be taken away only by following a reasonable and just legal procedure. A fair trial ensures that Article 21 of the Constitution is upheld. The Constitution and the law both state that all of the persons should carry out their roles in a proper manner. What this means is that they all need to work to ensure that every citizen, irrespective of their class, caste, gender, religious and ideological backgrounds gets a fair trial when accused. The rule of law which says that everyone is equal before the law would not make much sense if every citizen were not guaranteed a fair trial by the Constitution.
First Information Report (FIR):
It is with the registration of an FIR that the police can begin their investigations into a crime. The law states that it is compulsory for an officer in charge of a police station to register an FIR whenever a person gives information about a cognizable offence. This information can be given to the police either orally or in writing. The FIR usually mentions the date, time and place of the offence, details the basic facts of the offence, including a description of the events. If known, the identity of the accused persons and witnesses is also mentioned. The FIR also states the name and address of the complainant. There is a prescribed form in which the police registers an FIR and it is signed by the complainant. The complainant also has a legal right to get a free copy of the FIR from the police.
Key Terminology
Accused: In the context of this chapter this refers to the person who is tried by a court for a crime.
Cognizable: In the context of this chapter this refers to an offence for which the police may arrest a person without the permission of the court.
Cross-examine: In the context of this chapter this refers to the questioning of a witness who has already been examined by the opposing side in order to determine the veracity of his/her testimony.
Detention: In the context of this chapter this refers to the act of being kept in illegal custody by the police.
Impartial: The act of being fair or just and not favouring one side over another. Offence: Any act that the law defines as a crime.
To be charged of a crime: This refers to the trial judge informing the accused, in writing, of the offence for which he/she will face trial.
Witness: In the context of this chapter this refers to the person who is called upon in court to provide a first-hand account of what he/she has seen, heard or knows.