Explanation:
in order to prevent the government or a branch of government from becoming too powerful. for example the executive branch can check the legislative branch by vetoing a bill.
The first one: D- New Crops.
The second one: E- New Diseases.
Answer:
B
Explanation:
The reason being is that because there was no outside influence China was able to persevere the culture for years
The x is a variable in an equation. It can "vary" (hence it's name) and is unknown.
For example, 5+x=100
5 plus "something" equals 100.