D) all of the above
it is mostly A tho, but im pretty sure there are tourists that go there and that melting water is used for hydro-power too.
So D is your best choice
hope this helps
Answer: In Medieval Europe, knights pledged loyalty to vassals, who in turn pledged theirs to powerful lords, and serfs labored in the fields.
Explanation:
A rigid hierarchy refers to one where people who are born into a certain position in life, find it quite hard to move from it or rather one where there are different social classes and people had to be classified in one class for the system to work.
The system during medieval times was much like this. Social classes existed that determined a person's worth in society such as the knights, vassals, Lords and Royals. There was also the serfs who were considered the lowest in the hierarchy.
Erosion can be controlled by building terraces. The correct option among all the options that are given in the question is the first option. The building of terraces prevents soil erosion by a good margin. It is mostly done in the hilly regions to stop erosion of soil by rain. I hope the answer helps you.
Answer:
The red sea.
Explanation:
The Red Sea is an important trade route between the Mediterranean and Indian Oceans, thus between Europe and Asia.
The greenhouse gas also denoted as GHG are gasses <span>produced through activities which release carbon dioxide, methane, nitrous oxide and ozone CFCs (chlorofluorocarbons) , absorb and emit radiation and hold heat in the atmosphere. The result is the greenhouse effect and the global warming.
</span><span>The three major greenhouse gases are found in Earth’s atmosphere:
</span><span>carbon dioxide, methane, and water vapor. Answer:(1)</span>
