1. The important categories of solid waste are:
a) municipal wastes
b) hazardous wastes
c) industrial wastes
d) all of
these
2. Most harmful type of environmental pollutants are
a) Human organic wastes
b) waste animal feed
c) natural nutrients in excess
d) Non-biodegradable chemicals
3. The
newspaper contains one of the following toxic material.it is
a) Cadmium
b) Pb
c) Mercury
d) Mg
4.The
Love Canal Incidence’ is concerned with
a) Chemical plant accident
b) River pollution
c) nuclear explosion
d) Toxic waste dump
5. Domestic waste constitutes
a) Non-biodegradable pollution
b) effulents
c) air pollution
d) biodegradable pollution
6. The important steps in solid waste management are:
a) waste generation and collection
b) transport and disposal
c)on site handing, storage and processing
d) all of these
7. A waste is classified as hazardous if it shows:
a) toxicity and ignitability
b) corrosivity
c) reactivity
d) all of these
8. Which
of the following is a biodegradable pollutant?
a) plastic
b) detergent
c) domestic sewage
d) all of these
9.Objective of Integrated Pest management is?
a) irradiation of pest
b) encouragement of pest
c)keep pest population below a threshold level
d) none of these
10. In waste water treatment method, the activated sludge process is a
a) pre-treatment method
b) primary treatment method
c) secondary treatment method
d) tertiary treatment method
a) it is not cost effective
b) it involves lots of space and time
c) it causes environmental issues
d) it requires modern technology
a)Primary treatment method
b) Secondary treatment method
c) tertiary treatment method
d)both B and C
Answers:
1. d) all of these
2. d) Non-biodegradable chemicals
3. b) Pb
4. d) Toxic waste dump
5. d) biodegradable pollution
6. d) all of these
7. d) all of these
8. c) domestic sewage
9. c) keep pest population below a threshold level
10. c) secondary treatment method
11. c) it causes environmental issues
12. b) Secondary treatment method
