Worksheet: Environment and Sustainable Development - 2 | Economics Class 12 - Commerce PDF Download

Section 1: Fill in the Blanks

Q1: Carrying capacity implies that resource extraction should remain below the rate of _______.

Q2: __________ is a gradual increase in the average temperature of the Earth's lower atmosphere.

Q3: Ozone depletion is primarily caused by high levels of ________ used in air conditioners and refrigerators. 

Q4: Land degradation refers to a decline in the overall quality of ______, water, or vegetation condition.

Q5: The Central Pollution Control Board (CPCB) was established in ________ to address pollution concerns. 

Q6: Sustainable development aims to meet the needs of the ________ generation without compromising the ability of future generations.

Q7: Renewable resources should be extracted on a _______ basis to ensure sustainability.

Q8: Some long-term results of global warming include the extinction of species and ________ storms.

Q9: The main features of sustainable development include a sustained rise in ________ and rational use of natural resources.

Q10: ________ is a major environmental concern in India with reference to vehicular pollution in urban cities.

Section 2: Assertion and Reason

Reason: Greenhouse gases trap heat in the Earth's atmosphere.

(a) Both Assertion and Reason are true, and the Reason is the correct explanation of the Assertion.
(b) Both Assertion and Reason are true, but the Reason is not the correct explanation of the Assertion.
(c) Assertion is true, but the Reason is false.
(d) Both Assertion and Reason are false.

Q2: Assertion: Ozone depletion is primarily caused by CFCs.
Reason: CFCs break down ozone molecules in the stratosphere.
(a) Both Assertion and Reason are true, and the Reason is the correct explanation of the Assertion.
(b) Both Assertion and Reason are true, but the Reason is not the correct explanation of the Assertion.
(c) Assertion is true, but the Reason is false.
(d) Both Assertion and Reason are false.

Q3: Assertion: Sustainable development aims to meet the needs of the present generation.
Reason: It is not concerned with the well-being of future generations.
(a) Both Assertion and Reason are true, and the Reason is the correct explanation of the Assertion.
(b) Both Assertion and Reason are true, but the Reason is not the correct explanation of the Assertion.
(c) Assertion is true, but the Reason is false.
(d) Both Assertion and Reason are false.

Q4: Assertion: Land degradation can occur due to improper planning and management of irrigation systems.
Reason: Extraction of groundwater in excess of the recharge capacity contributes to land degradation.
Options:
(a) Both Assertion and Reason are true, and the Reason is the correct explanation of the Assertion.
(b) Both Assertion and Reason are true, but the Reason is not the correct explanation of the Assertion.
(c) Assertion is true, but the Reason is false.
(d) Both Assertion and Reason are false.

Q5: Assertion: The Central Pollution Control Board (CPCB) was established in 1974 to address pollution concerns.
Reason: It is responsible for planning and executing a nationwide program for the prevention, control, or abatement of water and air pollution.
(a) Both Assertion and Reason are true, and the Reason is the correct explanation of the Assertion.
(b) Both Assertion and Reason are true, but the Reason is not the correct explanation of the Assertion.
(c) Assertion is true, but the Reason is false.
(d) Both Assertion and Reason are false.

Section 3: Very Short Answers 

Q1: What are the two types of elements in the environment?

Q2:List the functions of the environment mentioned in the text.

Q3:What does carrying capacity of the environment imply?

Q4: Name two reasons for environmental crises mentioned in the text.

Q5: Provide an example of a renewable resource.

Q6: Name a major form of pollution mentioned in the text.

Q7: What causes global warming according to the text?

Q8: List two long-term results of global warming.

Q9: What is ozone depletion, as described in the text?

Q10: What are Chipko and Appiko movements related to?

Section 4: Short Answers

Q1: Explain the concept of carrying capacity and its implications for the environment.
Q2: Discuss the reasons for environmental crises as mentioned in the text.

Q3: Differentiate between renewable and non-renewable resources and provide an example of each.
Q4: Explain the major forms of pollution mentioned in the text and their consequences.

Q5: Describe the impact of global warming on the environment according to the text.

Q6: Discuss the factors responsible for land degradation as mentioned in the text.

Q7: Explain the functions and responsibilities of the Central Pollution Control Board (CPCB) in India.

Q8: Outline strategies for achieving sustainable development as mentioned in the text.

Section 5: Long Answers

Q1: Discuss the concept of sustainable development and its main features according to the text.

Q2: Analyze the dichotomy of environmental threats faced by India as outlined in the text.

Q3: Elaborate on the priority environmental issues identified in India and the strategies to address them.

Q4: Describe the functions of the environment and the consequences of exceeding its carrying capacity.