nitrogen gas (N2) reacts with hydrogen gas (H2) to form ammonia gas (NH3) models of the molecules are shown which model correctly shows that the mass is conserved in reaction ​

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."

the answer is definitely a