<span>Relative concentration of water in a hypnotic solution is high</span><span />
Trees would help make a forest. Tall grass would help make a meadow. Hope this helps!
A photoautotroph get its energy and carbon from the sunlight and from organic material. Photoautotrophs are organisms that carry out photosynthesis. They use energy from sunlight to carry out cellular processes. Hope this answers the question.
A biotic factor is all of the students in the classroom.
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