i.It causes air borne diseases such as lung cancer, asthma, etc ii.Global Warming iii.Acid rain iv.Ozone layer depletion
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15
A gas that causes acid rain is
sulphur dioxide/ nitrogen oxides
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15
One preventive measures for water pollution
Non biodegradable waste materials such as plastics should not be dumped in water bodies.
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15
Two effects of deforestation
Soil erosion and desertification/Destruction of natural habitat of animals and plants/Natural disasters (landslide , drought, flood)
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trap
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star
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gift
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banana
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15
One cause of water pollution
i. Discharge of sewage and detergents . ii. bathing and washing of clothes . iii. Discharge of agricultural wastes iv. Defecations by humans and animals
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15
The increase in average surface temperature of the earth due to trapping of sunâs heat by the greenhouse gases is known as.................
Global warming
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15
Trees release_____________ which is needed for survival.
Oxygen
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The practice of seeking, pursuing and capturing or killing wild animals.
Hunting
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Two air borne diseases
Asthma/ Lung cancer/ Cough
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15
Identify the given pollution
Air pollution
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we can help in the conservation of our forests by saving paper.
True
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Air pollution causes.........
Global warming
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...................................refers to the continual destruction of forest due to natural or human related activities.