Global warming is the negative consequence of cutting down trees in Central America and Brazil, although it provides for a source of income for the local people. So the correct option among all the given options in the question is option "a". <span>Normally cutting of forests will result in less rainfall
and increase in the level of carbon dioxide. The oxygen level will also
automatically decrease. This will ultimately result in elongated dry season and
fertility of the lands will also decrease.</span>
