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Answer:
Autotrophs
Explanation:
They are responsible for the production of food. Root words "auto" for self and "troph" for food.
Answer:
a. First order.
b. 
c. 
d. ![[A]=0.111M](https://tex.z-dn.net/?f=%5BA%5D%3D0.111M)
Explanation:
Hello.
a. In this case since the slope is in s⁻¹ we can infer that the lineal form of the rate law is:
![ln[A]=-kt+ln[A]_0](https://tex.z-dn.net/?f=ln%5BA%5D%3D-kt%2Bln%5BA%5D_0)
Which is also:

It means that the reaction is first-order as slope equals the negative of the rate constant which also has units of first-oder reaction.
b. Since the slope is −3.7 x 10−3 s−1 the rate constant is:

c. For first-order reactions, the half-life is:

d. In this case, since the integrated first-order rate law is:
![[A]=[A]_0exp(-kt)](https://tex.z-dn.net/?f=%5BA%5D%3D%5BA%5D_0exp%28-kt%29)
The concentration once 220 seconds have passed is:
![[A]=0.250Mexp(-3.7x10^{-3}s^{-1}*220s)\\\\](https://tex.z-dn.net/?f=%5BA%5D%3D0.250Mexp%28-3.7x10%5E%7B-3%7Ds%5E%7B-1%7D%2A220s%29%5C%5C%5C%5C)
![[A]=0.111M](https://tex.z-dn.net/?f=%5BA%5D%3D0.111M)
Regards.
The answer is "Ro-ions which are somewhat stronger bases than the hydroxide ion.
These ro-ions are also known as alkoxide ions, and these are stronger bases. the reason behind this is that the alcohols are weaker acids than the water. Alcohols are also used as solvent in some organic reactions and this offers and advantage to use ro-ions.
1. Fossils, rocks and mountain range
2. The location of ancient climatic zones.
3. The continents have moves from the continental drift several lines of evidence