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.
Common diseases in medieval Europe were dysentery, malaria, diphtheria, flu, typhoid, smallpox and leprosy.
Answer:
Gunpowder, paper, printing, and the compass are sometimes called the Four Great Inventions of Ancient China. Kites were first used as a way for the army to signal warnings. Umbrellas were invented for protection from the sun as well as the rain.
Explanation:
The correct answer is (2) an economist. study supply and demand for goods and services.
an anthropologist studies people in general, for example social groups but also individual people.
A sociologists studies the dynamic of a society
a political scientist studies politics.