Which law is not used to calculate changes in conditions for a sample of gas, but rather, is used to calculate a single set of conditions for a sample of gas?
a. boyle's law
b. charles's law
c. ideal gas law
d. combined gas law

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plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.