1. Which of the following group contain only
bio-degradable items?
a. Grass, flowers and leaves
b. Grass, wood and plastic
c.
Fruit peels, cake and plastic
d. Cake, wood and glass
Answer:
a. Grass, flowers and leaves
2. Which of the following constitutes a food
chain?
a. Grass, Wheat and mango
b. Grass, goat and human
c. Goat, cow and elephant
d. Grass, fish and goat
Answer:
b. Grass, goat and human
3. Which of the following are environment
friendly practices?
a. carrying cloth bags for shopping
b. switching off light and fans when
not in use
c. using public transport
d. all the above
Answer: d. All the above
4. What is called as ‘black gold’?
a. hydrocarbons
b. coal
c. petroleum
d. ether
Answer: c. Petroleum
5. Based on the food chain, pick the odd one
out:
Plants→ grasshopper→ frog→ tiger →
snake
Answer:
Tiger
6. Example for product of green chemistry is
________
a.
plastic
b. paper
c. bio plastics
d. halogen flame retardants
Answer: c. Bio plastics
7.
________ is a green house gas which
causes climate change and global warming.
a. hydrogen
b. oxygen
c. nitrogen
d. carbon dioxide
Answer: d. Carbon dioxide
8. The ________ form decomposers in the pond
ecosystem.
a. Plants
b. bacteria
c. frogs
d. phytoplanktons
Answer: b. bacteria
9. ________ is used in seeding clouds.
a.
potassium iodide
b.
calcium carbonate
c.
sulphurdioxide
d. ammonium phosphate
Answer: a. Potassium iodide
10. An example for fossil fuel is __________
a.
copper
b. iron
c. Magnesium
d.
coal
Answer: d. Coal
11. Ari pollution is caused by transport
exhaust fumes and emission of gases like SO₂, CO₂, NO₂ from industries. Similarly, water pollution is caused by
________.
a. sewage
b. crop cultivation
c. rain
d. soil erosion
Answer: a. sewage
12. If wild animals are killed, what difficulty
would we face?
a. imbalance in nature
b. decrease in fog rain
c. decrease in population
d. increase in rain
Answer: a. imbalance in nature
13. Water is an essential commodity for
survival. What can we do to help
increase water resources?
a. deforestation
b. reducing the use of vehicle
c. The burning of the wastage
d. afforestation
Answer: d. Afforestation
14. The tiger and the lion are
carnivores. Likewise the elephant and
the bison are ________.
Answer: Herbivores
15. Assertion (A): Coal and petroleum are called fossil
fuels.
Assertion (R): Fossil fuels are formed from the remains
of dead organisms after millions of years.
a. Both ‘A’ and ‘R’ are true and
‘R’ explains ‘A’.
b. Both ‘A’ and ‘R’ are true and
but ‘R’ doesn’t explain ‘A’
c. Only ‘A’ is true but ‘R’ is
false.
d. ‘A’ is false but ‘R’ is true.
Answer: a. Both ‘A’ and ‘R’ are true and ‘R’ explains
‘A’.
Reason : Coal and Petroleum are fossil fuels and
these are formed from the remains of dead organisms after millions of years.
16. Compressed
Natural Gas (CNG) is considered a better fuel than coal / petroleum, because
________.
Answer: It does not pollute the environment.
17. Now - a – days water bottles and lunch
boxes are made from agricultural products like fruit pulp. These are called ________.
Answer: products produced by Green
chemistry
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