Energy and Environment Management Mock Test 5

10%

Question 1 of 10

1. Why controlled use of water hyacinth is important in controlling of water pollution?

To decrease the BOD level

To maintain the BOD level

To completely vanish the BOD level

To increase the BOD level

Question 1 of 10

Question 2 of 10

2. Which pollution cause hearing loss in organisms?

Soil pollution

Water pollution

Noise pollution

Air pollution

Question 2 of 10

Question 3 of 10

3. Which of the following organisms found in human waste that cause water pollution?

Viruses

Parasitic worms

Coliform bacteria

Protozoa

Question 3 of 10

Question 4 of 10

4. What is the reason that oil pollution attracts the greatest attention?

Because of the volume

Because of the mass

Because of the density

Because of the visibility

Question 4 of 10

Question 5 of 10

5. All the rivers in India are female.

True

False

Question 5 of 10

Question 6 of 10

6. What is the dB of a threshold of hearing?

100

Question 6 of 10

Question 7 of 10

7. In sewage treatment of oxidation pond we can see the water up to 2 meters deep.

False

True

Question 7 of 10

Question 8 of 10

8. Integrated pest management reduces the excess use of fertilizers.

False

True

Question 8 of 10

Question 9 of 10

9. Which is the Longest River in India?

Indus

Ganges

Godavari

Brahmaputra

Question 9 of 10

Question 10 of 10

10. How many horizons are there in soils?

One

Three

Four

Two

Question 10 of 10