Earth Science Quiz LARIMAR

In pushing the continental drift theory, Alfred Wegener referred to similarities between which two continents?

• Asia and Africa

• Asia and Europe

• South America and North America

• South America and Africa

Which of the following is not a secondary plate?

• Cocos plate

• Nazca plate

• African plate

• Philippine plate

What happens to the temperature as we move from the crust to the inner core?

• Decreases

• Increases

• Stays the same

• None of these

Which theory states that pieces of the Earth's crust are in constant slow motion?

• Plate tectonics

• Contraction theory

• Seafloor spreading

• Continental Drift

It is the wave that does not travel in liquid.

• S-wave

• P-wave

• Love wave

• Rayleigh wave

The continental drift theory was proposed by Alfred Wegener in 1913.

• True

• False

Answer explanation

1912

At present, there are 15 tectonic plates which consist of primary and secondary plates.

• True

• False

Answer explanation

1. African Plate
2. Antarctic Plate
3. Eurasian Plate
4. Indo-Australian Plate
5. North American Plate
6. Pacific Plate
7. South American Plane
8. Nazca Plate
9. Arabian Plate
10. Caribbean Plate
11. Cocos Plate
12. Indian Plate
13. Juan de Fuca Plate
14. Philippine Sea Plate
15. Scotia Plate

The age of continental crust is estimated to be 7 billion years old.

• True

• False

Answer explanation

4 Billion years old

AFRICAN PLATE is not a secondary plate.

• True

• False

Answer explanation

The African Plate is classified as a primary or major tectonic plate.

Mantle is the liquid layer of the Earth that generates the planet's magnetic field.

• True

• False

Answer explanation

The planet's magnetic field is generated by the liquid outer core, which is composed mainly of molten iron and nickel.