Class 7 Geography
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
Answer: (1) Location where the force acts, (2) Seismograph, (3) levees, (4) Richter scale, (5) Loess, (6) Sea caves, (7) 2.0 or less, (8) Glacial moraines, (9) Sand dunes, (10) stacks
Question 1: Define lithospheric plates.
Answer: The lithosphere is broken into a number of plates which are called the lithospheric plates.
Question 2: What are the two main kinds of forces that act on the earth?
Answer: Endogenic forces and exogenic forces
Question 3: What is the basis on which the movement of the earth is divided into two categories?
Answer: The forces which cause the movements.
Question 4: Define volcano.
Answer: It is a vent / opening in the earth’s crust through which molten magma erupts suddenly.
Question 5: Define earthquake.
Answer: The vibrations caused on the surface of the earth when the Lithospheric plates move are called earthquakes.
Question 6: 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.
Question 7: Define weathering.
Answer: The breaking up of rocks on the earth’s surface.
Question 8: What are meanders?
Answer: Large bends formed by the river when it twists and turns on entering the plains.
Question 8: What are the agents responsible for erosion?
Answer: Wind, water and ice.
Question 9: What are sand dunes?
Answer: The hill-like structures in the desert when the sand falls and gets deposited when the wind stops blowing.
Question 10: Pick the odd one: mushroom rocks, sand dunes, sea caves.
Answer: Sea caves
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