Is calcarenite a mineral or a rock?

One gene can influence trait(s). one trait can be determined by gene(s).

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c.ozone layer hole d.increase in sea levels

Can a trait be both polygenic and have multiple alleles? explain why or why not.