1. Noise is measured in units of
a) Hertz
b) Decibel
c) Dobson
d) Becquerel

2. The unit for measuring the frequency of sound is
a) Decibel
b) Hertz
c) Dobson Units
d) None

3. The maximum Permissible sound limit, beyond it is certainly regarded as pollutant
a) 20 dB
b) 40dB
c) 45dB
d) 80dB

4. According to science researchers, the aquatic animals which are most badly affected by radioactive radiations are
a) Algae
b) Fish
c) Mollusks
d) Reptiles

5. Radioactive radiations may cause mutagenic effects in
a) Humans
b) Animals
c) Both 1 and 2
d) None

6. Which is the natural source of radioactivity in the environment
a) Cosmic rays
b) Radioactive rocks
c) Radio nuclides
d) None

7. The potentially renewable resource is
a) solar energy
b) Fossils Fuel
c) Fertile soil
d) Wind

8. A hazardous waste is characterized by
a) Reactivity
b) Toxicity
c) Ignitibility
d) All of the above

9. Eco-Labeling is governed by
a) ISO `14001
b) ISO 14020
c) ISO 14010
d) ISO 14040

10. Rapid EIA is called
a) Study of 3 months
b) Study of 4 months
c) Study of 6 months
d) study of 1 year