Current research suggests that - both the trichromatic and opponent-process theories are valid in explaining color vision. - the young-helmholtz theory best explains how we experience color. - both the young-helmholtz and the opponent-process theories are wrong in explaining color vision. - frequency theory shows promise in explaining how we experience color vision. - opponent-process theory is the most comprehensive theory for explaining color vision.

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.

black

lasagna

lunch

math

true                                                                                                       true true true true true true

light dependent reactions:

light independent reactions:

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