D should be the correct answer
Answer:
2. increases
Explanation:
Positive feedback is often associated with uncontrolled, runaway processes such as nuclear chain reactions and models of catastrophic climate change. ... If signaling output activity increases, positive feedback will further increase input levels, thereby enhancing the output signal.
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For your question briannaaguilar0729,
melting ice causes fresh water to be added to seawater in the Arctic Ocean that empties into the North Atlantic. The added fresh water makes seawater less dense.
The correct option I think would be “The ocean will become denser”