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Biology CBSE Live product
Class 8 (2025-26)
Our Home: Earth, a Unique Life-Sustaining Planet
Human impact and need for conservation
6.
Pollution – Air, water and soil
Question:
5
m.
Mark the most accurate option:
State the causes and impacts of water pollution.
Water pollution is caused by
industrial waste
factories
harmful substances
fertilisers
fossil fuels
,
agricultural runoff
environment
vehicles
gases
pesticides
and
plastics
acid rain
waste disposal
adverse effects
burning of fuels
It affects aquatic life, makes water
soil fertility
natural resources
contaminate soil
unsafe
smog and acid rain
, and spreads
respiratory problems
spreads diseases
ecological balance
crop yield
water bodies
.
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