Igneous rock can be changed into sedimentary rock when igneous rocks -

igneous rock can form above ground, where the magma cools quickly. When it pours out on Earth's surface, magma is called lava. ... After a long time the sediments can be cemented together to make sedimentary rock. In this way, igneous rock can become sedimentary rock.

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a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.