Answer:
It is difficult to cross.
Explanation:
The Sahara desert is a vast region about the size of the continental United States that is extremely dry and barren. The lack of water resources in the desert make the land unsuitable for agriculture and human population.
As a result, the Sahara acts as a giant natural wall both economically, culturally, and socially since relations between states to the north and south of the desert are difficult.
The answers are B and also C.
They are believed to cause divergence of lithospheric plates at the <span>mid atlantic ridge
</span><span> The currents reallocate heat from a certain place to another through mass motion of fluid (such as molten rock or water), The difference in temperature between core and lithosphere material generate enough force for the divergence to happen.</span>
Answer: Pakistan has low quality of coal (lignite) because pakistan is a poor country which dont have good machinary to dig out the best coal which is found very deep underground. So pakistan mainly use lignite which is found near the surface and it is easier to mine