Somebody help me so I can give y’all some points

Secondary pollutants are more harmful than primary pollutants. select the best answer from the choices provided ot of

Biomass can be used to generate electricity. biomass relies heavily on agricultural crops. plants release carbon dioxide and water in combustion. plants use photosynthesis to originally generate the energy that is needed. the chemical energy of these plants all started with what energy source?

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?