Environmental Science
How do red and blue light differ?

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

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Environmental Science
What is the official name of IUCN?

United Nations Educational, Scientific and Cultural Organization
United Nations Environment Programme
International Union for Conservation of Nature and Natural Resources
World Wide Fund for Nature

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