Mildred is able to measure the amount of carbon-14 in her sample and compare this to the amount of carbon-12 in it. she uses this information to calculate that the fossil is 4,500 years old.
the process that mildred used is known as
a. radiocarbon dating
b. faulting
c. indexing
d. superposition

Robert wants to know which fertilizer will work the best for his grass. what can he do to explore this inquiry?

What is the best-known carbohydrate?

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.