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Erosion The process by which wind, water ice, or gravity tranports soil and sedment from one location to another.
Water cycle The continuous movement of water from the ocean to the atmosphere to the land and back to the ocean.
Precipitation Is rain, snow, sleet, or hail that falls from clouds onto the earth's land and oceans.
Condensation Takes place when water vapor cools and changes into water droplets that form clouds in the atmosphere, water loses energy during condensation.
Evaporation Takes place when water from the oceans and the Earths surface changes into water vapor. Energy from the sun causes evaporation.Water gains energy during evaporation.
Runoff Is precipitation that flows over land into streams and rivers. This water later enters oceans.
Percolation Is the downward movement of water through pores and other spaces in soil due to gravity.
Old river An old river has a low gradient and little erosive energy. Instead of widening and deepening its banks, the river deposits rock and soil in and along its channel.Old rivers, such as the one in figure 7, are characterized by wide, flat flood ploains.
Young river A youthful river, such as the one shown in figure 5, erodes its channel deeper rather than wider. The river flows quickly because of its steep gradient. Its channel is narrow and straight. The river tumbles over rocks in rapids and waterfalls.
Created by: kyyu.clm