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A landform is a feature on the Earth's surface that is part of the terrain. Mountains, hills, plateaus, and plains are the four major types of landforms. Minor landforms include buttes, canyons, valleys, and basins. Tectonic plate movement under the Earth can create landforms by pushing up mountains and hills.
A plain is nothing but a low-lying relatively flat land surface with very gentle slope and minimum local relief. About 55% of the earth's land surface is occupied by plains. Most of the plain have been formed by deposition of sediments brought down by rivers.
Plateaus are elevated flatlands. In other words, it is flat land which is standing high above the surrounding area. Furthermore, they may have one or more sides with steep slopes. Also, depending upon the plateau, their height varies from a few hundred meters to several thousand meters.
No only the 2nd energy level hold 8 electrons
<h2>Osmosis.</h2>
Explanation:
The correct order of balloon volumes at equilibrium, from largest to smallest:
Balloon D > Balloon C > Balloon B > Balloon A.
Osmosis is defined as the process of movement of water molecules from the region of their higher concentration to the region of their lower concentration i.e. from a less concentrated concentrated solution to a solution with greater concentration through a semipermeable membrane.
So , In case of balloon A and B water will move out of them and at equilibrium it will have reduced volumes. However, A will lose more water that B.
In case of Balloon C no water movement will be observed it will remain constant.
In case of Balloon D, Water will move inside the balloon and its volume will increase.
Thus at equilibrium the order of balloon volumes will be :
Balloon D > Balloon C > Balloon B > Balloon A.
