Please answer the questions that have “type here”

Earth science

Earth science or geoscience is the study of the Earth's structure, properties, processes, and four and a half billion years of biotic evolution.  Understanding these phenomena is essential to the maintenance of life on the planet. There are four basic areas of Earth science study:

the areas around the equator

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.