Session 1: Society and Environment
Unit 5: Green Skills
Textual Question-Answers
Check Your Progress
A. Multiple choice questions
Read the questions carefully and circle the letter (a), (b), (c) or(d) that best answers the question.
1. What are some of the environmental changes caused due tomodern methods of agriculture?
(a) Chemical pollution due to fertilisers
(b) Improvement in the environment
(c) Lower air pollution due to crops
(d) Decrease in forest areas
Ans: (a) Chemical pollution due to fertilisers, (d) Decrease in forest areas2. How can we conserve our health and environment?
(Choose all the correct options)
(a) Grow organic crops
(b) Use natural fertilisers
(c) Manage waste water
(d) Use more air conditioning
Ans: (a) Grow organic crops, (b) Use natural fertilisers, (c) Manage wastewater
3. A steel factory burns firewood and charcoal for heating and meltingthe steel. What are the possible effects on the environment?
(Choose all the correct options)
(a) Increase in global temperature
(b) Decrease in global temperature
(c) Increase in air pollution
(d) Decrease in air pollution
Ans: (a) Increase in global temperature, (c) Increase in air pollutionB. Short answer questions
1. What are the five sources of energy available to us? Give twoexamples of each source.
Ans:
Solar energy: Sunlight, solar panels
Wind energy: Windmills, wind turbines
Water energy: Rivers, dams
Fossil fuel energy: Coal, petroleum
Biomass energy: Firewood, animal waste
2. What are the sources of pollution?
Ans: The sources of pollution include factories, vehicles, burning of fuels,
agricultural chemicals, sewage waste, and household garbage.
3. Classify the following under the three respective categories ofnatural resources:
Air, iron, sand, petroleum, wind, clay, fish, forest, gold, pearls.
Ans:
Inexhaustible: Air, wind
Renewable: Fish, forest, sand, clay
Non-renewable: Iron, petroleum, gold, pearls
