Answer:
I. and II.
Explanation:
Due to the difference in sunlight and precipitation on the leeward and windward side of a mountain range, the plant and animal species that can survive in each zone may differ considerably.
The rain shadow effect also occurs on the leeward side of the mountain where precipitation is blocked by the mountain range and thus prevented from falling on the far side. On the windward side of a mountain range, precipitation tends to be copious as the water vapour in most air condenses to form rain clouds as it rises up the slopes of the range.
Answer:
One benefit that chemical weathering has for people is that it helps combat carbon dioxide. By trapping carbon dioxide in the sediment, chemical weathering removes it from the atmosphere. The decrease in carbon dioxide helps counter global warming.
The Balkan nations are currently capitalist, not communist, so the first statement is correct. Further, they do have internal conflict, for example between the Bosniak and Serbian population in Bosnia. They also attract foreign investment.
So all the options are correct!