Answer:
I. and II.
Step-by-step 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.