Which of the following statements is true?

a) groundwater doesn't exist in dry climates.
b) fifty percent of earth's freshwater is underground.
c) soil with mixed particles of different sizes is very porous.
d) groundwater adds water to lakes, rivers, and oceans.

Groundwater adds water to lakes, rivers, and oceans.

your answer is c) plasma

~*"auba14"*~

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl