1. Answer the following questions.
(i) Why do the plates move?
(ii) What are exogenic and endogenic forces?
(iii) What is erosion?
(iv)How are flood plains formed
(v) What are sand dunes?
(vi) How are beaches formed?
(vii) What are ox bow lakes?
Answers
Why do the plates move?
》 The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other. This movement is called plate motion, or tectonic shift.
What are exogenic and endogenic forces?
》 Endogenic (or endogenetic) factors are agents supplying energy for actions that are located within the earth. ...
What is erosion?
》In earth science, erosion is the action of surface processes that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location.
How are flood plains formed
》When it floods, it deposits a layer of fine soil, rich mineral salts, nutrient-rich silt, sediment, and distribute it across a wide area.
What are sand dunes?
》A dune is a landform composed of wind- or water-driven sand. It typically takes the form of a mound, ridge, or hill.
How are beaches formed?
》A beach forms when waves deposit sand and gravel along the shoreline. and pebbles. Over time they are worn smooth from being rolled around by waves.
What are ox bow lakes?
》An oxbow lake starts out as a curve, or meander, in a river. A lake forms as the river finds a different, shorter, course. The meander becomes an oxbow lake along the side of the river.
Answer:
1. Plates move due to the internal pressure below the crust of the earth .
2. Exogenic forces are external forces and endogenic forces are the internal forces .
3. Erosion is the process by which the top fertile soil cover is washed away or flown off.
4. Flood plains are formed by the deposition of silt and sand particles in the lower parts of their plain by the rivers .
5. Sand dunes are deposition of sand formed in the deserts by the transportation action of wind .
6. Beaches are formed by the action of sea and deposition of sand along the land boundaries.
7. While moving in the plain , when the river slows down too much and forms a bend in the shape of a ox bow , it is called a ox bow lake.
Explanation:
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