Questions: Which type of environmental scientist is likely to study methods of water conservation and decontamination? a. Hydrologist b. Toxicologist c. Oceanographer d. Ecologist

The answer is the first one (A): Hydrologist.

Explanation for each option: a. Hydrologist: Hydrologists study the distribution, circulation, and properties of water in the environment. They are particularly concerned with water conservation and decontamination, making them the most likely type of environmental scientist to study these methods.

b. Toxicologist: Toxicologists study the effects of chemicals and other substances on living organisms. While they may be involved in studying contaminants, their primary focus is not on water conservation.

c. Oceanographer: Oceanographers study the physical, chemical, and biological aspects of the ocean. While they may study water in the context of marine environments, they are not primarily focused on water conservation and decontamination.

d. Ecologist: Ecologists study the relationships between organisms and their environments. While they may be concerned with water quality as it affects ecosystems, their primary focus is not specifically on water conservation and decontamination.

Summary: The best answer is A: Hydrologist, as they are the environmental scientists most likely to study methods of water conservation and decontamination.