Answer :
A high coastal mountain range is on the western coast of a continent. Warm moist air blows from the west to east over the mountains. From this information you would expect the western side of the mountain range to have. compared to the eastern side of the mountain range E .THE SAME CLIMATE
The west side of the mountain range would have a considerably higher annual precipitation than the east side so the west side would probably have a lot of vegetation whereas the east side may even be desert or semi-desert such as in British Columbia Canada where the west side of the Coast Ranges is a rainforest and the east side in the vicinity of Kamloops is semi-arid to arid.