Fact 1: Gases released during the use of fossil fuels causes global warming. Fact 2: Global warming is a global environmental problem. Given the two facts above, gases released during the use of fossil fuels cause a what?
Options are:
(1). atmospheric depletion.
(2). global environmental problem.
(3). Plant growth is reduced.
(4). global finances.
(5). depress neuronal excitability.
(6). DNA damage and mutations.
(7). global food increase.
(8). global water stability.
(2).