Space and Tectonic plates

The Collision Theory tells about the formation of ....

• the Sun

• the Moon

• Mars

• Solar system

Arrange the sequence in the formation of Moon based on Collision Theory.

A: Rocks and dust are formed by the collision.

B: A newly formed planet (same size as Mars), named Theia, collided with the Earth.

C: Rocks and dust are pulled together by the force of gravity to form the Moon.

• A -> B -> C

• A -> C -> B

• B -> C -> A

• B -> A -> C

Nebulae are clouds of ______ and ______ in space.

• Rocks

• Dust

• Gas

• Stars

The gases in nebulae are ........ and ......

• oxygen

• carbon dioxide

• hydrogen

• helium

Stellar nurseries are area in space where ________ are formed.

• planets

• stars

• dust

• moons

Choose the Correct descriptions about structure of earth.

• A = crust

• B = outer core

• C = mantle

• D = inner core

The tectonic plates on the Earth's surface move due to ......

• gravity pull by the Sun

• gravity pull by the Moon

• convection current in the mantle

• fossils movement

Plate boundaries are places where two tectonic plates joined. Below are the events due to the movement of tectonic plates, EXCEPT:

• volcanic eruption

• earth quake

• mountain building (fold mountain)

• typhoon

Which of the followings are the evidence(s) of tectonic plates?

• jigsaw appearance of continental coast

• location of volcanoes and earthquakes

• Fossil record

• Alignment of magnetic materials in the Earth's crust