One is B, two is C, and I'm not sure but I think three is A or C.
The African countries include: Nigeria, Ghana, Gambia, Sierra Leone, Liberia, South Sudan, and Cameroon.
The advantage of using passive or active solar systems was these systems release low amounts of carbon dioxide or other pollutants. Thus, Option C is the correct statement.
<h3>What is the benefit of using Passive or active solar systems?</h3>
One of the best reasons to use effective solar technology is to reduce your energy bills. Active solar systems can include expensive hardware, and Passive solar systems may create the cost of renovating your home, but a reduction in your utility bills will ultimately outweigh the costs.
Thus, Option C is the correct statement.
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B. North Sea, it is well known for its fierceness. Throughout the year there are strong storms that hit the coasts of the countries that surround it.This huge raft of seawater of about 750,000 square kilometers, an "arm of the Atlantic" we could say, receives marine currents from the other side of the world and is stirred up affecting the British Isles, Norway, Denmark, Germany, Holland, Belgium and France with big tides and scary storms.