Science

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1 point

How thick is the mantle

20000 kms

3800 kms

2800 kms

2000 kms

1000 kms

1 point

How many different mineral species are known to man

100

400

4000

2000

1 point

What is the difference between lava and magma

Nothing, they are both the same

Lava is when molten rock is below the earths surface and magma is when lava come above the crust

Lava is when magma comes from under the earth and comes out onto the surface

Magma is a solid and lava is a liquid

1 point

Which one is a sedimentary rock

Lava

Basalt

Sandstone

Gold

1 point

The inner core is liquid

True

False

1 point

What tectonic plate is Australia on

Australian plate

Exto Australian plate

Indo Australian plate

Indian plate

1 point

Why is the inner core a solid

Because it is on the inside

Because it has a gravitational pull

Because the outer core is liquid

Because of the extreme pressure from the other layers

1 point

Is Moh's scale about hardness

True

False

1 point

Is the Earth 70% water or 70% land

70% water

70% land

10.

1 point

How many layers of the Earth are there

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