Practice Worksheet
Q1) Define the following terms
a) Environment
b) Ecology
c) Ecologist
d) pollution
e) pollutants
f) global warming
Q2) List 4 ways in which we alter environment to suit our needs.
Q3) Name the 4 main kinds of environmental pollution.
Q4) How air gets polluted? How does it affect the health of humans?
Q5) Discuss about Greenhouse effect and greenhouse gases.
Q6) List few effects of global warming
Q7) Why is ozone important? What is the result of having holes in ozone layer.
Q8) Write short note on
a) acid and acid rain.
b) soil pollution
c) land pollution
Q9) How does air pollution affects the temperature of the atmosphere?
Q10) List few ways in which water gets polluted.
Q11) Name 3 disease that we get by drinking contaminated water.
Q12) What is noise pollution? What are the causes of noise pollution?
Q13) What are natural resources? Give examples.
Q14) List few measures that we have started taking to save our natural resources. (any 6 ways)
Q15) Write full form of
a) WWF
b) IUCN
Q16) Name 2 organisations that encourage people to save forest and wildlife.
Q17) How is noise pollution harmful to us?
Q18) Give reasons.
a) We should not throw plastic bottles, cans and glass bottles in the garbage dumps.
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b) Farmers should not use too much pesticides and fertilizers.
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Q7. What is the main cause of acid rain?
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Q8. List three measures to be taken to save our environment.
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