<span>You would know you were in the troposphere if you see stuff like the clouds because it is earths lowest layer. </span>
The answer is C.
<span>Carbohydrates acts as source of energy for the body
glucose and a store of energy or starch in plants</span>
I think the correct answer from the choices listed above is the third option. The barrel of a gun is also known as bore. The barrel is the metal tube which the bullet is fired and the bore is the inside of the barrel. It is the one closest to the barrel so it must be the answer.
