- Circle the letters of the regions of the visible spectrum in which chlorophyll absorbs light very well.
a. blue-violet region
b. green region
c. red region

A) Blue-violet region.

Explanation:

Plants tend to absorb blue or violet light better than both green and red because their wavelengths are closer to UV rays. Red light is about average, and green light doesn't really help plants grow that well, maybe only a little bit depending on the scenario.

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the farther away the object is from the central star (the sun) it's gravitainal pull on the object is weaker when it is farther

explanation:

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.