Environmental Science
Lotic ecosystem refers to

Static water system
Ecosystem of estuaries
Ecosystem of flowing water
Deep marine water system

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Environmental Science
How do red and blue light differ?

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

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Environmental Science
The wind direction is:

Always directly from high toward low pressure
The direction to which the wind is blowing
Always directly from low toward high pressure
The direction from which the wind is blowing

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