Which type of environmental scientist is most likely to study how whales are affected by pollution?
a. hydrologist
b. toxicologist
c. ecologist
d. oceanographer

A hydrologist can be defined as the person who researches the circulation, distribution and the properties (physical) of the water (underground and surface). A toxicologist is responsible for the study of the effects of various chemicals, drugs, or medicines on the body of an organism. An ecologist studies the distribution, abundance, and relationship of the different organisms and the environment of an ecosystem. An oceanographer studies the marine life, seafloor geology, plate tectonics and other properties of the ocean. an oceanographer will be responsible for the study of the effect of pollution on the whales.

Hence, the correct answer is 'Option D - Oceanographer'.

it cools slower in the earth meaning the crystals have more time to form than lava on the surface

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.