An investigation is to search something up to look for the facts an demonstration is showing a reason of proof for something
Answer: Photosynthesis is a <u>endergonic </u>reaction.
Explanation: An endergonic reaction is formally known to require and adsorb energy from the surrounding. Where as, exergonic reactions will release the energy.
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The raw material that is added to a system for processing is known as input. The product produced is the output.
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The balanced equation will be 2HgO--->2Hg+O2