Answer: Please see answer in the explanation column.
Explanation: Matching the vocabulary word with its defintion gives 
1. a seasonal change in air circulation patterns that result in heavy wind and rain-------Monsoon
2 . referring to weather on the leeward side of a mountain---rain shadow 
3 . a steep cliff or slope usually caused by faulting or erosion--escarpment 
4 . a group of islands clustered together in a large body of water--- archipelago
 5 . underground water---aquifers
 6 . a fertile desert area----Oasis 
 7 . triangular land at the mouth of a river--- Delta
 8 . a land mass surrounded by water on three sides----peninsula