Pollution of Air and Water

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Question

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Question 1 :

Addition of harmful substance in water to make it unfit for human consumption is called?

1. Retardation
2. Decomposition
3. Water pollution
4. Biomagnifications
Answer
23119

Question 2 :

The substance that pollute the natural substance is called

1. Fertilizers
2. Reactant
3. Magnifier
4. Pollutant
Answer
23120

Question 3 :

Water pollution is caused by

1. Aquatic animals living in water
2. Addition of untreated sewage in water bodies
3. Plant growing near water bodies
4. Excess drawing of water from water bodies
Answer
23121

Question 4 :

Which of the following area is likely to be most air polluted?

1. Park
2. Residential area
3. Crop field
4. Industrial area
Answer
23122

Question 5 :

Which one is not a natural source of water

1. Canal
2. Pond
3. River
4. Lake
Answer
23123