Environmental Science
How do red and blue light differ?

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

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Environmental Science
Which of the following statement is incorrect regarding ecological pyramids

The pyramid of biomass is upright in grass land ecosystem
The pyramid of biomass is inverted in aquatic ecosystem
The pyramid of energy is inverted in ocean ecosystem
The pyramid of numbers is upright in grass land ecosystem

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