Take a look at the following list of vehicles. which do you think is best for the environment? which do you think is the most harmful? write a few sentences defending your choices.

gasoline-fueled sedan
diesel-fueled pickup truck
hybrid pickup truck
electric-powered sedan

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.