The answer is: [D]: "adapting to droughts and few sources of water" .
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I think the answer is (c)
Tenton Range, The Rocky mountains, the Jackson Hole.
Tree planting, because it will fight it by creating more plants. :) hope this helps!
Respiration of carbon dioxide by plant roots can lead to the formation of carbonic acid which can chemically attack rocks and sediments and help to turn them into soils. There are a whole range of weathering processes at work near the surface of the soil, acting together to break down rocks and minerals to form soil.