The chart above shows how a star's temperature relates to its color. rigel is a blue star, betelgeuse is a red star, and the sun is a yellow star. how do the temperatures of these stars compare? a. the three stars have different colors but the same temperature. b. betelgeuse is hotter than the sun and cooler than rigel. c. rigel is hotter than betelgeuse and cooler than the sun. d. the sun is hotter than betelgeuse and cooler than rigel.

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.