Carbon dioxide can be produced by what type of power generation a. coal b. solar c. hydroelectric d. winde

The Correct Answer is A

"Coal"

Explanation:

Coal is considered as a Fossil fuel, It pollutes the environment and atmosphere due to producing a large amount of smoke and generate carbon dioxide.Coal operational and maintenance cost is higher as compared to the Hydroelectric plants.Combustion of Coal leads to increased levels of sulfur dioxide and other chemical pollutants in the environment.

They must use the scientific method

The return of the wolf to yellowstone national park will probably affect the bird population to some degree, not significantly. while wolves will hunt birds when necessary, they prefer to hunt larger prey. the bird population will most likely only be affected when hunting is scarce for the wolves. birds of prey will also probably not be affected as much as other birds who spend more time on the ground hunting for food as the tend to spend more time in the air or in trees since they do not need to stay on the ground for long due to the nature of the way they hunt.