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Layers of volcanic materials that build up around vent to form a cone-shaped structure are known as –
- Crater
- Vent
- Cone
- None of the above
Correct answer(s):
- Cone
A hole in Earth’s crust through which magma comes to Earth’s surface is known as –
Correct answer(s):
- Vent
Eruptions of composite volcanoes are loud and violent because that contain –
- basic lava
- viscous composite lava
- viscous acid lava
- none of the above
Correct answer(s):
- viscous acid lava
Passageway which joins vent to crater of volcano is known as –
Correct answer(s):
- Pipe
Acid lava flows slowly as it is highly –
- dense
- viscous
- sensitive
- all of the above
Correct answer(s):
- viscous
Eruptions from composite volcanoes are usually –
Correct answer(s):
- loud and more violent
This is the scale used to measure the size of volcanic eruptions –
- Richter Scale
- Volcanic Explosivity Index
- Volcano Eruptivity Scale
- None of the above
Correct answer(s):
- Volcanic Explosivity Index
The Earth while rotates around the Sun It always keeps its axis pointed towards :
Correct answer(s):
- the pole star
Total surface area of the earth in square kilometer is :
Correct answer(s):
- 510.1 million square kilometer
In which situation Spring tides can occur :
Correct answer(s):
- the moon, the sun and the earth in the same line
Mohs scale is used to determine :
Correct answer(s):
- degree of hardness of minerals
In which direction the Earth rotates around its axis ?
Correct answer(s):
- west to east
What is the circumference of the Earth in kilometers ?
Correct answer(s):
- 40075 KM
What is the actual shape of the Earth ?
Correct answer(s):
- oblate spheroid
The greatest amount of isolation is received by which place of Earth’s surface ?
Correct answer(s):
- Tropical deserts
What happens when a ship crosses International Date Line from west to east ?
Correct answer(s):
- It loses one day
The International Date line passes through :
Correct answer(s):
- Bering strait
Who among the following was the first to measure the circumference of the Earth ?
Correct answer(s):
- Eratosthenes
The upper part of the mantle upon which the crust of the Earth floats is called :
Correct answer(s):
- asthenosphere
Tropic of Cancer does not pass through which one of the following countries ?
Correct answer(s):
- Nepal