Which of the following statements best describes the geosphere?
a) the sphere that consists of solid rock layers near earths surface
b) the sphere that includes mountains and valleys
c) the sphere that has three main parts: a metal core, a solid middle layer, and a rocky outer layer
d) the sphere that contains beaches

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.