1. The unfavourable alteration of
environment due to human activities is termed as
Answers
1. d) pollution
2. c) Lichen
3. c) closure of stomata
4. d)hydrocarbon gases
5. a) mercury
6. c) biological oxygen demand
7. a) highly polluted
8. b) world environment day
9. d) cytosilicosis
10. b) decibel
a) ecological disturbance2. Which of the following is the best indicator of SO2 pollution
b) catastrophe
c) ecological degradation
d) pollution
a) bryophyte3. Heavy dust can cause
b) pteridophyte
c) Lichen
d) algae
a) leaf blights4. Which of the following is the major cause of pollution
b) opening of stomata
c) closure of stomata
d) browning of leaves
a) plants5. Minamata disease was caused by pollution of water by
b) man
c) fungi
d) hydrocarbon gases
a) mercury6. BOD stands for
b) lead
c) tin
d) methyl iso cyanate
a) biotic oxidation demand7. A river with high BOD value is
b) biological oxidation demand
c) biological oxygen demand
d)biochemical oxygen demand
a) highly polluted8. 5th June is observed as
b) highly clean
c) highly productive
d) none of these
a) world forest day9. Cement factory labourers are prone to
b) world environment day
c) world wildlife day
d) world population day
a) leukemia10. Noise is measured using sound meter and the unit is
b) bone marrow disease
c) asbestosis
d) cytosilicosis
a) hertzLearn more
b) decibel
c) joule
d) sound
Answers
1. d) pollution
2. c) Lichen
3. c) closure of stomata
4. d)hydrocarbon gases
5. a) mercury
6. c) biological oxygen demand
7. a) highly polluted
8. b) world environment day
9. d) cytosilicosis
10. b) decibel
Tags:
BOD
bone cancer
Environmental Pollution mcq
Heavy dust
Minamata disease
pollution mcq
world environment day