Contrast environmental science and ecology.

Environmental science is a vast subject that deals with the study of the elements that exist in any environment and their interaction with one another. It also includes the study of the impacts on the organisms. In addition to that, it puts more emphasis on the effects of human activities on the environment. The environmental conditions change over time and have impacts on a global scale and identifying all of these, sustainable alternative methods are adopted for maintaining a safe, and healthy environment.

Whereas, ecology involves the study of the different species and their interconnection with the existing environment. It also focuses on the species biodiversity and the distribution pattern of these species within a particular ecosystem. In addition to that, their food habit as well as the type of environment also are studied.

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im not intirely sure but i think the anwser is d relative humidity