Answer:
A.smart
Explanation:
Cunning is like a word for sneaky which doesn’t sound positive. But smart does sound positive and if you call someone smart you usually get a good reaction
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Answer: What is the process of eutrophication, and how do human activities accelerate it? It is when lakes contain an abundance of nutrients, or when organic matter builds up in water and it will begin to decay and decompose. It is accelerated when inorganic plant nutrients is in the runoff water.
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A screw holds things together, so B
Essentially the difference would be that when you talk to your friend, you would use an informal register: you would for example directly say what you need "hey, pass me that thing" while when you write a letter to Unisa you would use polite language and formal register, for example you would say" I would be very happy to receive from you the following..." -even thought the two sentences express the same thing!
