Land covered with fresh snow reflects back more sunlight as compared to other three. Fresh snow and ice reflect 80 - 85% of the sunlight. Therefore, the skin of skiers is irradiated by sunlight from all sides, since the snow does not take up the light but reflects it and remains cold. Scientists give a name to this ability of surfaces to reflect light.
Which of the following is not a result of underground water activity?
Fiords or fjords are coasts formed by the submergence of U- shaped glacial troughs. These are narrow inlets of the sea into the seacoast bounded by steep and high mountain slopes, the height matched by its vast depth too.
A block of the earth's crust that has remained in position while the ground around it has subsides is known as ________
Sedimentary rocks have layers because of different depositions of sediments (small broken pieces of rocks) over time. The different groups of sediments could have been deposited through wind, water, ice, and/or gravity at different intervals of time and compacted on top of each other, until they create a sedimentary rock that has several different types of sediments (possibly from different rock types) in the form of layers.
Which of the following is not an agent which produces physical features ?
Conduction is not an agent which produces physical features. In conduction, heat moves from areas of more heat to areas of less heat by direct contact. Warmer molecules vibrate rapidly and collide with other nearby molecules, transferring their energy.