The correct answer is A. rainforests are responsible for most global oxygen turnover.
This is not true because rainforests, even though they have a lot of trees, are very humid, and actually take up a lot of oxygen to be able to 'feed' the vegetation found there. Other forests actually provide most oxygen in the world, but not rainforests. The other options are correct.
<span>The answer
to this question is that Thomas should conduct “Secondary Data Analysis”.</span>
<span>Secondary
Data Analysis involves the use existing data of a previous study in order to
pursue another research which is different from that previous study. In this
case, Thomas is going to use the Baltimore City Data for understanding the
trend.</span>
