Which of these is not an environmental effect of burning fossil fuels?

a. acid rain
b. increased temperature
c. habitat loss
d. increased carbon dioxide levels

Plz ! cattle ranchers and dairy farmers rarely allow all of their animals to reproduce instead they practice selective breeding and only encourage the reproduction of animals with specific features. which of the following cows would a dairy farm most likely choose to reproduce? a. a cow that makes a lot of milk. b. a cow that can run quickly. c. a cow with a think, soft fur. d. a cow with large, strong hooves.

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels

With regard to enzymes, key is to lock as a) substrate is to activation energy eliminate b) product is to substrate. c) enzyme is to active site. d) substrate is to active site.