Interior of the Earth 2

Density of the core is highest because-

• due to heavy pressure of overlying rocks

• due to heavy temperature of overlying rocks

• none of the above

Which is the major element in the Earth’s crust?

• Silica

• Iron

• Zinc

• Aluminium

Which of the following is known as thinnest layer of the earth?

• Crust

• Core

• Mantle

• None of the above

Which type of volcano has a very broad shape with gentle slopes?

• Caldera

• Shield volcano

• Composite volcano

• Flood basalt provinces

What is magma?

• Hot, molten rock

• A type of tectonic plate

• Lava

• A magnetic force under the ground

Where in the world are three quarters of the world's active volcanoes found?

• On volcanic islands

• Underwater

• On the top of the mountains

• At volcanic hot spots

Which type of volcanic eruptions is responsible for Deccan Trap formations in the Indian peninsular region?

• Shield volcano

• Caldera

• Composite volcano

• Flood basalt provinces

Which of the following terms regarding intrusive volcanic landforms are correctly matched?

1. Sill- lava solidifies almost perpendicular to the ground.

2. Phacolith- found at the base of syncline and top of anticline.

3. Laccoliths- when lava settles in a saucer shape while moving on a horizontal weak plane.

• Only 1

• Both 2 and 3

• Only 2

• All are correct