I believe the answer is: Saharan desert
In Hot Desert such as sahara, there is very few water source that organism can use to drink and replenish the fluid in their body, which is why not many animal can afford to cross the Saharan desert.
Camels is the only animal available that could store a Huge amount of water in their hump, which enable them to cross the desert for a very long time without needing to drink.
A) An amendment is a formal change to law
The Monroe Doctrine is an important piece of America's foreign policy in the early 19th century. This established four different conditions for international relations including:
1) US would remain neutral in European affairs.
2) US would not interfere with European colonies in the Western Hemisphere.
3) No new colonies can be established by European colonies in the Western Hemisphere.
4) Any new attempt to colonize in the Western Hemisphere by a European country would be seen as a hostile attack.
With these conditions, the US is trying to address the issues of peace and safety. Ultimately, the goal of this doctrine is to stop any future conflicts over territory from happening.
Are there no DBA guides from the teacher or notes you have?
Sometimes I prepare a lot for one and end up getting asked like 5 questions and worried for nothing (':
Maybe characters and setting?