What is the source of black carbon aerosols?
A) Petroleum
B) Soot
C) Bacteria
D) Mineral deposits
Answer: B
You might also like to view...
One problem that occurs as a consequence of CFC pollution is ________
A) eutrophication B) damage to human red blood cells C) movement of toxins into lakes and rivers, which poisons fish D) increasing skin cancer in humans E) respiratory irritation and lung cancer
The major reason why large-scale areas of broadleaf evergreen trees occur only in the southern hemisphere is that:
a. only ocean areas are found in the northern hemisphere at the latitude necessary for sustaining these forests. b. broadleaf evergreen species are continentally isolated from the northern hemisphere. c. ocean influence maintains the moderate temperatures needed by this type of tree. d. large areas of these trees in North America were cleared for cultivation.
A hurricane that once began to weaken can strengthen again, if it moves over a body of warm water
a. True b. False
What is NOT one of the factors that influences stream discharge?
A. drainage basin area B. depth of the channel C. velocity of the stream D. width of the channel E. seasonal high-water flow