Which would least likely have an impact on global climate changes?
a. producing energy using hydroelectric plants
b. producing energy using coal
c. producing energy using oil
d. producing energy using natural gas

Awater molecule is polar because there is an uneven distribution of these between the oxygen and hydrogen atoms.

Select the true statements about eubacteria. most live as decomposers and heterotrophs. most only thrive in a narrow range of environments. certain eubacteria are responsible for food poisoning. eubacteria thrive in extreme environments.

Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass