All the members of a specific species that live in an area are a population.
It seems that you have missed the given options for this question, but anyway, the correct answer would be PHOTOSYNTHESIS. When a chloroplast uses light energy to initiate a reaction between carbon dioxide and water, the <span> products of this reaction are sugar and oxygen and the process that uses this function of a chloroplasts is photosynthesis.</span>
The conditions depend on the density level of the snow.
Another reason is the imperfect data gathering especially if initial results are only gathered.
The third reason is that computer models still find it difficult to see small scale phenomena.
