Plus Two / 12th Economics - Book Back Answers - Chapter 1 - English Medium
Chapter 10: Environmental Economics
Tamil Nadu Board 12th Standard Economics - Chapter 10: Book Back Answers and Solutions
This post covers the book back answers and solutions for Chapter 10 from the Tamil Nadu State Board 12th Standard Economics textbook. These detailed answers have been carefully prepared by our expert teachers at KalviTips.com.
We have explained each answer in a simple, easy-to-understand format, highlighting important points step by step under the relevant subtopics. Students are advised to read and memorize these subtopics thoroughly. Once you understand the main concepts, you’ll be able to connect other related points with real-life examples and confidently present them in your tests and exams.
By going through this material, you’ll gain a strong understanding of Chapter 10 along with the corresponding book back questions and answers (PDF format).
Question Types Covered:
- 1 Mark Questions: Choose the correct answer, Fill in the blanks, Identify the correct statement, Match the following
- 2 Mark Questions: Answer briefly
- 3, 4, and 5 Mark Questions: Answer in detail
All answers are presented in a clear and student-friendly manner, focusing on key points to help you score full marks.
All the best, Class 12 students! Prepare well and aim for top scores. Thank you!
Chapter 10: Environmental Economics
I. Choose the correct answer.
1. The term environment has been derived from a French word_______.
a. Environ
b. Environs
c. Environia
d. Envir
Answer Key:
c. Environia
2. The word biotic means environment
a. living
b. non-living
c. physical
d. None of the above
Answer Key:
a. living
3. Ecosystem is the smallest unit of
a. Ionosphere
b. Lithosphere
c. Biosphere
d. Mesosphere
Answer Key:
c. Biosphere
4. Who developed Material Balance Models?
a. Thomas and Picardy
b. AlenKneese and R.V. Ayres
c. Joan Robinson and J.M. Keynes
d. Joseph Stiglitz and Edward Chamberlin
Answer Key:
b. AlenKneese and R.V. Ayres
5. Environmental goods are _________
a. Market goods
b. Non-market goods
c. Both
d. None of the above
Answer Key:
b. Non-market goods
6. In a pure public good, consumption is ________
a. Rival
b. Non-rival
c. Both
d. None of the above
Answer Key:
b. Non-rival
7. One of the most important market failures is caused by _______
a. Positive externalities
b. Negative externalities
c. Both
d. None of the above
Answer Key:
b. Negative externalities
8. The common source of outdoor air pollution is caused by combustion processes from the following_______
a. Heating and cooking
b. Traditional stoves
c. Motor vehicles
d. All the above
Answer Key:
c. Motor vehicles
9. The major contributor of Carbon monoxide is
a. Automobiles
b. Industrial process
c. Stationary fuel combustion
d. None of the above
Answer Key:
a. Automobiles
10. Which one of the following causes global warming?
a. Earth gravitation force
b. Oxygen
c. Centripetal force
d. Increasing temperature
Answer Key:
d. Increasing temperature
11. Which of the following is responsible for protecting humans from harmful ultraviolet rays?
a. UV-A
b. UV-C
c. Ozone layer
d. None of the above
Answer Key:
c. Ozone layer
12. Global warming also refers to as
a. Ecological change
b. Climate Change
c. Atmosphere change
d. None of the above
Answer Key:
b. Climate Change
13. Which of the following is the anticipated effect of Global warming?
a. Rising sea levels
b. Changing precipitation
c. Expansion of deserts
d. All of the above
Answer Key:
a. Rising sea levels
14. The process of nutrient enrichment is termed as
a. Eutrophication
b. Limiting nutrients
c. Enrichment
d. Schistosomiasis
Answer Key:
a. Eutrophication
15. Primary cause of Soil pollution is _______
a. Pest control measures
b. Land reclamation
c. Agricultural runoff
d. Chemical fertilizer
Answer Key:
d. Chemical fertilizer
16. Which of the following is main cause for deforestation?
a. Timber harvesting industry
b. Natural afforestation
c. Soil stabilization
d. Climate stabilization
Answer Key:
a. Timber harvesting industry
17. Electronic waste is commonly referred as ________
a. solid waste
b. composite waste
c. e-waste
d. hospital waste
Answer Key:
c. e-waste
18. Acid rain is one of the consequences of ________
a. Air pollution
b. Water Pollution
c. Land pollution
d. Noise pollution
Answer Key:
a. Air pollution
19. Sustainable Development Goals and targets are to be achieved by _______
a. 2020
b. 2025
c. 2030
d. 2050
Answer Key:
c. 2030
20. Alkali soils are predominantly located in the ______ plains?
a. Indus-Ganga
b. North-Indian
c. Gangetic plains
d. All the above
Answer Key:
d. All the above
a. Environ
b. Environs
c. Environia
d. Envir
Answer Key:
c. Environia
2. The word biotic means environment
a. living
b. non-living
c. physical
d. None of the above
Answer Key:
a. living
3. Ecosystem is the smallest unit of
a. Ionosphere
b. Lithosphere
c. Biosphere
d. Mesosphere
Answer Key:
c. Biosphere
4. Who developed Material Balance Models?
a. Thomas and Picardy
b. AlenKneese and R.V. Ayres
c. Joan Robinson and J.M. Keynes
d. Joseph Stiglitz and Edward Chamberlin
Answer Key:
b. AlenKneese and R.V. Ayres
5. Environmental goods are _________
a. Market goods
b. Non-market goods
c. Both
d. None of the above
Answer Key:
b. Non-market goods
6. In a pure public good, consumption is ________
a. Rival
b. Non-rival
c. Both
d. None of the above
Answer Key:
b. Non-rival
7. One of the most important market failures is caused by _______
a. Positive externalities
b. Negative externalities
c. Both
d. None of the above
Answer Key:
b. Negative externalities
8. The common source of outdoor air pollution is caused by combustion processes from the following_______
a. Heating and cooking
b. Traditional stoves
c. Motor vehicles
d. All the above
Answer Key:
c. Motor vehicles
9. The major contributor of Carbon monoxide is
a. Automobiles
b. Industrial process
c. Stationary fuel combustion
d. None of the above
Answer Key:
a. Automobiles
10. Which one of the following causes global warming?
a. Earth gravitation force
b. Oxygen
c. Centripetal force
d. Increasing temperature
Answer Key:
d. Increasing temperature
11. Which of the following is responsible for protecting humans from harmful ultraviolet rays?
a. UV-A
b. UV-C
c. Ozone layer
d. None of the above
Answer Key:
c. Ozone layer
12. Global warming also refers to as
a. Ecological change
b. Climate Change
c. Atmosphere change
d. None of the above
Answer Key:
b. Climate Change
13. Which of the following is the anticipated effect of Global warming?
a. Rising sea levels
b. Changing precipitation
c. Expansion of deserts
d. All of the above
Answer Key:
a. Rising sea levels
14. The process of nutrient enrichment is termed as
a. Eutrophication
b. Limiting nutrients
c. Enrichment
d. Schistosomiasis
Answer Key:
a. Eutrophication
15. Primary cause of Soil pollution is _______
a. Pest control measures
b. Land reclamation
c. Agricultural runoff
d. Chemical fertilizer
Answer Key:
d. Chemical fertilizer
16. Which of the following is main cause for deforestation?
a. Timber harvesting industry
b. Natural afforestation
c. Soil stabilization
d. Climate stabilization
Answer Key:
a. Timber harvesting industry
17. Electronic waste is commonly referred as ________
a. solid waste
b. composite waste
c. e-waste
d. hospital waste
Answer Key:
c. e-waste
18. Acid rain is one of the consequences of ________
a. Air pollution
b. Water Pollution
c. Land pollution
d. Noise pollution
Answer Key:
a. Air pollution
19. Sustainable Development Goals and targets are to be achieved by _______
a. 2020
b. 2025
c. 2030
d. 2050
Answer Key:
c. 2030
20. Alkali soils are predominantly located in the ______ plains?
a. Indus-Ganga
b. North-Indian
c. Gangetic plains
d. All the above
Answer Key:
d. All the above
II.Answer the following questions.
12th Economics (soon)
III. Answer the following questions.
12th Economics (Soon)
IV. Answer the following questions.
12th Economics (Soon)
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