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Eva8 [605]
3 years ago
12

What are the five main chemical compounds of life

Chemistry
1 answer:
anygoal [31]3 years ago
4 0
Carbohydrates,Lipids,Proteins,Nucleic acids,<span>Organic Compounds</span>

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What is the mechanism by which Ozone is formed in the presence of sunshine?
katovenus [111]
Stratospheric ozone is formed naturally through the interaction of UV radiation with molecular oxygen.

not sure if this is what you want but hope it helps!!!
8 0
3 years ago
A student practicing for a track meet ran 300 meters in 30 seconds. what was her average speed?​
ololo11 [35]

Answer:

<h2>10 m/s</h2>

Explanation:

Her average speed can be found by using the formula

v =  \frac{d}{t}  \\

d is the distance

t is the time taken

From the question we have

v =  \frac{300}{30}  = 10 \\

We have the final answer as

<h3>10 m/s</h3>

Hope this helps you

7 0
3 years ago
Why do the densities of most substances increase when temperature decreases?
vlada-n [284]

This is because temperatures determine the kinetic energy of molecules of a substance, At lower temperatures the molecules have low kinetic energy hence the distance between molecules is not as large as when the kinetic energy is higher (because the molecules bombard less and with less kinetic energy). This means the substance can pack more molecules per volume at lower temperatures. The more the molecules per volume the higher the density.

6 0
3 years ago
Read 2 more answers
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Jobisdone [24]

Answer:

earth is were humans live for live and the moon controls the water and the sun gives heat for us humans and plants and life

Explanation:

7 0
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27. Some forces require direct contact, while others, like gravity, act at a distance. Which of the following is NOT
Rudiy27

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pretty sure its D

like 85% sure

6 0
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