In divergent boundaries, plates move away from one another, often causing volcanic activity. The cooled magma is able to form islands such as the ones on the Aleutian archipelago.
*I don't think any of these are actual types of mountains. <em>Arc contient </em>and <em>Andean</em> aren't even real things.
As for your second question:
There are two main types of rocks in the Earth's crust.
Granite is less dense and rises higher, usually above land in continental crust.
Basalt is denser and so it will sink lower and form oceanic crust.
However, there is a layer of sediment on top of that crust. (sand, gravel, etc.)
<span>3.548 million in 2014
They haven't counted 2015.</span>
Answer: D
Explanation: Nationalism has unified those who share a common language.
(Other answers are completely wrong as answer A has nothing to do with Nationalism, B is irrelevant as Communism is on the opposite side of the ideological/political spectrum as to Nationalism, and C is completely wrong because Nationalism is based off the pride of one single ethnicity, not multiple.)
Answer:
d. the Sahara desert forms a cultural barrier in Africa
Explanation:
The vast Sahara certainly plays the role of a cultural barrier, blocking the North-South exchanges on that huge continent.
a. apartheid is the official policy of Africa
: today? False, that ended in 1994.
b. Europe controls most of African nations today. No, at least not politically. China is a bigger player in Africa now than most European countries with massive investments. Most European colonies got their independence 50-60 years ago.
c. Africa is governed by the IMF IMF is an economic institution, it doesn't control or rule any country.
I'm going with B because its fully man made
