The destruction of the forest areas by man made efforts is called ____________.
A. Afforestation
B. Deforestation
C. Non-forestation
D. Bio forestation
Author: Aroma Ann
A renewable source of energy is ____________.
A. Petroleum
B. Coal
C. Nuclear fuel
D. Trees
Nitrogen fixing blue green alga is _____________.
A. Clostridium
B. Rhizobium
C. Nostoc
D. Nitrosomonas
More solar radiation is received at the ____________.
A. Earth
B. Top of the atmosphere
C. North and south poles
D. None of these
In the northern hemisphere, a solar panel should be placed on the side of the roof facing ____________.
A. East
B. West
C. North
D. South
Exponential growth occurs when there is ____________.
A. A great environmental resistance
B. No environmental resistance
C. No biotic potential
D. A fixed carrying capacity
Of the gases listed below, which is NOT believed to be responsible for enhancing the earth’s greenhouse effect?
A. Chlorofluorocarbons (CFCs)
B. Molecular oxygen (O2)
C. Nitrous oxide (N2O)
D. Carbon dioxide (CO2)
E. Methane (CH4)
Most harmful environmental pollutants are ____________.
A. natural nutrients in excess
B. human organic wastes
C. non-biodegradable chemicals
D. waste animal feed
The most abundant gases in the earth’s atmosphere by volume are ____________.
A. Carbon dioxide and nitrogen
B. Oxygen and water vapor
C. Nitrogen and oxygen
D. Oxygen and helium
E. Oxygen and ozone
An increase in albedo would be accompanied by ______________ in radiative equilibrium temperature.
A. An increase
B. A decrease
C. No change
D. Unstable oscillations
