Large volcanic eruptions
A) increase global temperatures due to the increased albedo of volcanic aerosols.
B) decrease global temperatures due to the increased albedo of volcanic aerosols.
C) have no effect on global temperatures despite the increased albedo of volcanic aerosols.
D) have little effect on the atmosphere unless only a small amount of sulfuric gases are released.
Question 2
Changes in the output from the Sun
A) are significant and account for varying climatic cycles.
B) are totally insignificant.
C) do effect the earth-atmospheric temperature but the total impact is not fully understood.
D) account for the periods of drought and wetness over North America.
Mutualisms, such as those that occur among plants and pollinators, generally involve large numbers o
Atmospheric pressure decreases with increase in altitude.
Regional and Global Connections
Waste is responsible for 3.6% of global greenhouse gas emissions
Land use change and forestry are responsible for 18% of global greenhouse gas emissions
Global list of Threatened Species