CBSE Geography Class 7
Our Changing Earth
Our Changing Earth - Chapter Wise CBSE Solved Question and Answer Based On NCERT
Very Short Q&A:
Q1: The lithosphere is broken into number of plates known as…………………….
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Q2: The molten magma inside the earth moves in a circular manner.( T/F)
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Q3: Define focus.
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Ans:
The place in the crust where the movement starts is called the focus.
Q4: Which of the following is not a part of earth quake waves-
- S
- P
- L
- T
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Q5: Which of the following machine is used to measure earthquake-
- Richter scale
- Seismograph
- Sphygmomanometer
- Anemometer
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Q6: ………………is used to measure magnitude of earth quake.
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Q7: The highest water fall is…………………falls of Venezuela.
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Q8: What is vent?
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Ans:
The narrow opening of a volcanoes is called vent.
Q9: Sudden movement in the earth interior are cause due to –
- Exogenic force
- Plutonic force
- Endogenic force
- None of these
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Q10: The strength of the earth quake decreases away from the centre. (T/F)
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Q11: Match the following –
| Column 1 |
Column 2 |
- P waves-
- S wave
- L wave
|
- Surface wave
- Longitudinal wave
- Transverse wave
|
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Q12: A ………………is a vent in the earth crust through which molten material erupts suddenly.
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Q13: When the rivers began to break up into a number of streams called………………….
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Q14: Which among the following is not the agent of weathering and erosion-
- Wind
- Water
- Ice
- Heat
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Q15: The depositional feature of a glacier is-
- Moraine
- Beach
- Flood plain
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Q16: Focus lies just above the epicentre (T/F)
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Q17: Severe earth quake calculated above the 5.0 magnitude. (T/F)
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