<span>Chloryphyll is the main chemical used in photosynthesis.
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Answer: Light, temperature, water, and CO2.
Explanation:
<span>Scratch it against a streak plate to see the color of its residue.
And
</span><span>Hold light to it and examine its luster.
Along with
</span><span>Examine its texture and see if it's rough, smooth, or glassy.</span>
With world conditions today its hard for a family to survive. So not to many people will want kids in order to survive. So I say Yes There is.
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Light and heat waves
They both are electromagnetic & can travel through vac., sound waves does not include in EM Spectrum
So, option A is your answer.
Hope this helps!
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