As the climate becomes warmer in mountainous regions, the biological effects on mountain ecosystems will
A) include the spread of mountaintop species down to lower elevations.
B) increase biodiversity at all levels as climates are more hospitable.
C) be to erase all effects of climate formerly caused by temperature and rainfall.
D) probably cause the extinction of high altitude species as their habitats warm.
Question 2
The long-term effect of increasing ocean heat content is that it
A) contributes to global climate change by gradually raising air temperatures.
B) causes a shrinkage of ocean volume, offsetting sea level rise.
C) will cool the atmosphere and offset air temperature increases.
D) will reduce the rate of melting of glaciers and polar ice caps.