Environmental Science
Ecology is

Integrates both social and natural sciences to help us understand how the earth works,
The study of the environment in the absence of humans
The science that studies the evolution of life,
The study of the relationships between organisms and their environment

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Environmental Science
How do red and blue light differ?

Blue light has a higher speed of propagation.
The wavelength of red light is longer.
Red and blue light have different directions of polarization.
Red light has a higher intensity.

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