Actually, the fact that climate is changing is (no-longer) controversial,but what is controversial is whether this is a man-made change.
If people accept the idea of man-made climate change, they would have to make changes in their life-style (less consumption)- and they don't want to do this. This is why even thought the evidence points to it, many people refuse to accept it. The controversy is between the people who do and don't accept it.
Answer:
It was good that America intervened, it's the main factor that ended World War 1. It was internationally and domestically good because if Germany were to win, it could cause future problems for the USA and all of Europe.
The detrimental was the signing of the Treaty of Versailles, which imposed harsh treaties on Germany which led to World War 2. That war affected everyone around the world.
The answer is C. Texans are wrong to challenge the Mexican government and must be defeated. :)
