Kim is standing at the bus stop. her weight of 550 newtons is a downward force caused by gravity. what is the amount of force that the ground is pushing back on her with?

a) 0 n there is no force

b) 550 n it is equal to the downward force

c) 600 n it has to be more than the weight

d) 500 n it has to be less than the weight

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.