Human activities, particularly the combustion of are altering the climate by increasing co2 in the atmosphere.
a) fossil fuels b) hydrogen fuel c) nuclear fuels d) alternative fuels

Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase

Many farmers prefer cattle without horns because it is safer for their herds. the allele for no horns (n) is dominant to the allele for the presence of horns (n). a farmer mates a male with horns to a heterozygous female without horns. what is the chance that the offspring will have horns?

Hybrid instruments that play sounds that are part sampled and part synthesized are known as: