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Consider the following events related to the Earth's crust:
1. Alfred Wegener puts forward the continental drift theory
2. An earthquake strikes Bhuj in Gujarat
3. Pangaea begins to break apart
4. McKenzie, Parker and Morgan put forward the idea of plate tectonics
Select the correct chronological order.
Consider the following statements about Wegener's continental drift theory:
1. Panthalassa was the name of the single landmass that contained all the continents.
2. When Pangaea first split, Laurasia lay to the north and Gondwanaland to the south.
Which of the statements given above is/are correct?
Match List-I with List-II:
| List-I (Type of volcano) | List-II (Feature) |
|---|---|
| A. Shield | 1. Collapses on itself after erupting |
| B. Composite | 2. Very fluid lava flowing far; formed the Deccan Traps |
| C. Caldera | 3. Largest volcanoes, apart from basalt flows; Hawaii |
| D. Flood basalt | 4. Lava cooler and more viscous than basalt |
Select the correct answer using the codes given below.
Consider the following statements about plate boundaries:
1. At a divergent boundary, plates move apart and new crust is formed.
2. At a transform boundary, crust is destroyed as the plates slide past each other.
3. At a convergent boundary, the place where one plate sinks under another is called a subduction zone.
Which of the statements given above is/are correct?
Consider the following statements about the forces that shape the Earth:
1. Wind is an example of an endogenic force.
2. Earthquakes are an example of an endogenic force.
3. Mid-oceanic ridges are the most active areas of volcanic eruption.
Which of the statements given above is/are correct?
Consider the following statements about plate tectonics:
1. The Indian plate includes Peninsular India and the continental part of Australia.
2. The Himalayas were formed by the collision of the Indian plate with the Eurasian plate.
3. The lithosphere is divided into nine major plates and some minor plates.
Which of the statements given above is/are correct?
Match List-I with List-II:
| List-I (Term) | List-II (Description) |
|---|---|
| A. Focus | 1. Point on the surface directly above the place where movement starts |
| B. Epicentre | 2. Place inside the crust where movement starts |
| C. Seismograph | 3. Opening in the crust through which molten material comes out |
| D. Vent | 4. Machine used to measure earthquakes |
Select the correct answer using the codes given below.
Match List-I (Scientist) with List-II (Idea associated).
| List-I (Scientist) | List-II (Idea associated) |
|---|---|
| A. Alfred Wegener | 1. Nebular hypothesis |
| B. Hubble | 2. Plate tectonics |
| C. Laplace | 3. Continental drift |
| D. McKenzie, Parker and Morgan | 4. Expanding universe |
Select the correct answer using the codes given below.
Match List-I (Term) with List-II (Meaning).
| List-I (Term) | List-II (Meaning) |
|---|---|
| A. Pangaea | 1. Mouth of a volcano |
| B. Crater | 2. Single landmass made of all the continents |
| C. Trench | 3. Site where one plate sinks under another |
| D. Subduction zone | 4. Deep part of the ocean |
Select the correct answer using the codes given below.
Compared with basalt lava, the lava erupted by composite volcanoes is:
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