The demand for environmental scientists and hydrologists is expected to increase because of a(n) a. increased demand for natural resources; need to create environmental laws to protect natural resources for human consumption; need to develop air quality control systems for big business; need to ensure proper disposal of human waste b. increased demand for natural resources; need to enforce environmental laws and regulations; need to analyze human impact on the environment and to invent ways to restore it; need to ensure proper disposal of human waste c. decreased demand for natural resources; need to analyze impact of invasive species on the environment and to invent ways to preserve it; decrease of man-made reefs and their impact on oceans; need to develop sanitation systems d. decreased demand for natural resources; need to enforce environmental laws and regulations; need to develop sanitation systems; need to create environmental laws to protect natural resources for human consumption

b. increased demand for natural resources; need to enforce environmental laws and regulations; need to analyze human impact on the environment and to invent ways to restore it; need to ensure proper disposal of human waste.

Hydrologists are the scientists who studies about the water bodies present on the earth. They study the quality of water, energy of the streams and waves associated with the water body, pollution and aquatic animal and plant life that a water body can sustain. Environmental scientists study the effect of natural and man- made hazards on the ecology, depletion and excavation of resources.

b. increased demand for natural resources; need to enforce environmental laws and regulations; need to analyze human impact on the environment and to invent ways to restore it; need to ensure proper disposal of human waste is the relevant option because with the increase in the human population worldwide demand and use of resources is likely to increase. The increase in the human population would contaminate the environment such as water and air.

The hydrologist and environmental scientists will impose laws and safety measures to prevent inappropriate waste disposal.

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