Which of these is an argument against the use of carbon dioxide sequestration technologies?
O A. The environment cannot naturally remove carbon dioxide fast
enough.
O B. Trapping carbon dioxide produces a net reduction in greenhouse
gas emissions.
O C. There are few risks associated with trapping carbon dioxide.
D. Current technologies are expensive and potentially dangerous.

Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

Match each symbol with its description.