Which of the following statements is true? Energy from the sun is used by plants to make food.

The sun is made of mostly hydrogen and helium.

The sun is the most massive object in the solar system.

all of the above

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added

the wetland preservation movement began in the u.s. in earnest with the clean water act (cwa) of 1972. although not specifically written to protect wetlands, the cwa is comprised of a series of regulations designed to prevent pollutants from contaminating u.s. waters.