Answer:d.acts as a sedative
Explanation:
Caffeine is a stimulant. It has a stimulating effect on the central nervous system. It has a ability to suppress the brain receptor like adenosine.
The inhibition of adenosine will lead to suppression of sedative effects it causes.
Even low doses of caffiene can reduce drowsiness and fatigue.
One should avoid or limit caffeine because it is mildly addictive, it may cause irritability, and it may cause sleeplessness. But caffeine is not a sedative.
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Answer:
When tou are shipping freight to your customers, the cost of making that delivery is an expense that comes out of your ledger as a debit. This is considered a selling expense and is known as freight-out. When you make a purchase and the supplier bills you for shipping, that is referred to as a freight-in.
Explanation:
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The most unusual thing about the way water changes from one state to another is that its liquid state is denser than its solid state, so increased pressure actually encourages ice to melt. This is unlike most substances, in which increased pressure encourages solidification because the solid state is the most dense.