Global warming caused by the enhanced greenhouse effect is likely to have major consequences for arctic ecosystems. Which of the following are likely to occur in the arctic if the Earth’s surface temperature rises?

I. Decreased rates of decomposition of detritus 

II. Increased range of predators from temperate regions 

III. Increase in numbers of pest species and pathogens

A. I and II only
B. I and III only
C. II and III only
D. I, II and III

C

N/A