The outermost zone of a biosphere reserve is __________?
A. manipulation zone
B. core zone
C. buffer zone
D. all the above
Continue reading “The outermost zone of a biosphere reserve is __________?”
Author: Aroma Ann
Air pollution can be of __________?
A. natural origin
B. artificial or man made origin
C. both a and b
D. b only
Which country contains about 50% of the world’s coal resources?
A. United States
B. China
C. Canada
D. The former Soviet Union
In the stratosphere, the air temperature normally __________?
A. Decreases with increasing height
B. Increases with increasing height
C. Both increases and decreases depending on the season
D. Cannot be measured
Continue reading “In the stratosphere, the air temperature normally __________?”
Which book written by Rachel Carson resulted in banning DDT in USA?
A. Silent spring
B. The environmentalism
C. Biomagnification
D. Food chain
Continue reading “Which book written by Rachel Carson resulted in banning DDT in USA?”
The aurora is produced by __________?
A. Reflections of sunlight by polar ice fields
B. Fast-moving charged particles colliding with air molecules
C. Burning oxygen caused by the intense sunlight at high altitude
D. The combination of molecular and atomic oxygen to form ozone
E. Scattering of sunlight in the upper atmosphere
What is an Incinerator?
A. Furnace used for burning solid waste
B. Furnace used for treating liquid waste
C. Both a & b
D. None of the above
BOD stands for __________?
A. Biological Oxygen Decrease
B. Biotic Oxygen Demand
C. Biological Oxygen Demand
D. None of the above
______________ is the study that deals with the interaction of organisms with their environment.
A. Etiology
B. Ecology
C. Botany
D. Biology
