Match the following description and the term
Column I | Column II |
---|---|
(a) Hollow-like caves | (1) Sea arches |
(b) Roof of the cave | (2) Sea cave |
(c) Walls of the cave | (3) Sea cliff |
(d) Steep rocky coast | (4) Stack |
Answer: (a) 2, (b) 1, (c) 4, (d) 3
Match the following terms with their meanings
Column I | Column II |
---|---|
(a) Focus | (1) the waves that radiate out in all direction during an earthquake |
(b) Epicenter | (2) place in the crust where the movement starts |
(c) Seismic waves | (3) place on the surface above the focus |
Answer: (a) 2, (b) 3, (c)1
Define lithospheric plates.
Answer: The lithosphere is broken into a number of plates which are called the lithospheric plates.
What are the two main kinds of forces that act on the earth?
Answer: Endogenic forces and exogenic forces
What is the basis on which the movement of the earth is divided into two categories?
Answer: The forces which cause the movements.
Define volcano.
Answer: It is a vent / opening in the earth’s crust through which molten magma erupts suddenly.
Define earthquake.
Answer: The vibrations caused on the surface of the earth when the Lithospheric plates move are called earthquakes.
What are the three types of earthquake waves?
Answer: P waves or longitudinal waves, S waves or transverse waves and L waves or surface waves.
Define weathering.
Answer: The breaking up of rocks on the earth’s surface.
What are meanders?
Answer: Large bends formed by the river when it twists and turns on entering the plains.
What are the agents responsible for erosion?
Answer: Wind, water and ice.
What are sand dunes?
Answer: The hill-like structures in the desert when the sand falls and gets deposited when the wind stops blowing.
Pick the odd one: mushroom rocks, sand dunes, sea caves.
Answer: Sea caves
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