Class 6

Gravity and erosion are major factors in changing the shape of the surface of Earth. The different types of erosion and the effect of gravity on objects is discussed in this video.

Waves, wind, water, and ice shape and reshape the Earth’s land surface by eroding rock and solid in some areas and depositing them in other areas, sometimes in seasonal layers. Rock is composed of different combinations of minerals. Smaller rocks come from the breakage and weathering of bedrock and larger rocks.

Answer: A mushroom rock, rock pedestal, or gour is a typical mushroom-shaped landform that is formed by the action of wind erosion.

Plants seeds of plants with strong roots in areas where the soil is bare. The extra roots will act as stabilizers and hold the topsoil in place. Grasses are the perfect option for this kind of solution, and they add some lush greenery to the garden.

Explanation: Folding is a result of the force of compression when two lithospheric plates collide during a convergent plate movement. This causes the lifting and folding of the rock layers on the Earth’s crust leading to the formation of fold mountains.

Fold mountains are created where two or more of Earth’s tectonic plates are pushed together. At these colliding, compressing boundaries, rocks and debris are warped and folded into rocky outcrops, hills, mountains, and entire mountain ranges. Fold mountains are created through a process called orogeny.

Answer: Because they are formed on the flooding of rivers, by the deposit of fine soil layers and other material called sediments along the banks of the river.

As the river erodes laterally, to the right side then the left side, it forms large bends, and then horseshoe-like loops called meanders . The formation of meanders is due to both deposition and erosion and meanders gradually migrate downstream.

When the lithosphere is broken into a number of plates is called the Lithospheric plates. The plates are moving because they are floating on the molten magma inside the earth. The movement of lithospheric plates causes changes on the surface of the earth.

Erosion is the wearing away of the landscape by different agents like running water, glacier, wind, ground water and sea waves