A. They live in the polar regions of the Northern and Southern Hemispheres.
Answer
I think the cause would be unprotected sex and well that would also be how its transmitted.
Explanation:
There are both natural and human sources of carbondioxide<span> emissions. Natural sources include decomposition, ocean release and </span>respiration<span>. Human sources come from activities like cement production, </span>deforestation<span> as well as the burning of </span>fossil fuels<span> like </span>coal, oil<span> and </span>natural gas<span>.</span>
