What are the parts that make up a nucleotide?
a. phosphate, amino acid, sugarb. sugar, phosphate, nitrogenous basec. nitrogenous base, amino acid, phosphated. sugar, amino acid, nitrogenous base

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation:

which

what is a measurement of the earth’s history divided into time periods?

> fossil record <

sedimentary rock

> geologic time scale <

radioactive elements

maybe because its impossible for balloons to lift a whole entire house.