Where is oxygen content in a river or stream likely to be the highest

A stream

Explanation:because it is most likely to be more oxygen whe there is cold water not warm water

A) the source

Explanation:

"Oxygen levels are higher at the source of rivers and streams, so organisms that require higher levels of oxygen will be found there. Organisms that require lower levels of oxygen will be found nearer the mouth."

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 !