Aperson who works to develop ways to control the spread of plant diseases is a(n)

here is the answer

water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. weathering is the breaking down or dissolving of rocks and minerals on earths surface. once a rock has been broken down, a process called erosion transports the bits of rock and minerals away.

i would think a oil tanker that has leaked in a bay

artificial selection

explanation:

this occur when man select base on their intelligent