| A | B |
|---|
| arid | dry area of land, having greater potential evapotranspiration than precipitation for a majority of the year |
| humid | an area where the precipitation is greater is greater than the potential evaporation for the majority of the year |
| glaciers | huge mass of ice slowly flowing over a land mass, formed from compacted snow |
| alpine glaciers | glacier found in a mountain valley |
| continental glacier | a massive ice sheet covering a large area such as the Antarctic ice sheet |
| glacial till | unsorted sediment pushed, carried or dragged by a glacier |
| erratics | large boulders left by a glacier |
| moraines | features made of glacial till |
| eskers | long, narrow ridge of coarse gravel deposited by a stream flowing in or under a decaying glacial ice sheet |
| kames | cone-shaped hill formed at the ice front of a glacier |
| drumlin | glacial hill shaped like the back of a spoon |
| kettle holes | depression in a glacial sediment formed when a large block of buried ice melts |
| outwash plain | horizontal layers of sorted glacial material deposited in front of the glacier by the meltwaters of the glacier |
| rock resistance | characteristic of rock types to resist the forces of change, including weathering and erosion |
| competent rocks | resistant to weathering and erosion |
| incompetent rocks | poor resistance to weathering and erosion |
| escarpment | steep slope separating two gently sloping surfaces |
| faults | cracks in the crust of the earth |
| folds | bends in the rock strata produced during the mountain forming process |
| joints | crack in a rock mass or rock where, unlike a fault, no vertical or horizontal displacement has occurred |
| drainages | dendritic (random drainage over bedrock), trellised (parallel folds and faults), and radial (volcanic cones, young domes) |
