Geology Revision

Which layer is made of molten rocks

• Crust

• Inner core

• Mantle

• Outer core

When the lava  cools it forms ______

• Sedimentary rocks

• Igneous rocks

• Metamorphic rocks

What is the difference between magma and lava ?

• Magma is inside the earth, Lava is at the surface of the Earth

• Lava is inside the earth, Magma is at the surface of the Earth

Granite is found in

• Magma

• Lava

which one is the oldest and which one is the newest ?

• F is the oldest

  A is the newest

• E is the newest

  F is the oldest

• A is the oldest

  F is the newest

• D is the newest

  C is the oldest

which of these properties is true about sedimentary rocks.

• Sedimentary rocks are soft because they are made of soft grains.

• Sedimentary rocks are non-porous

• Sedimentary rocks are mods of crystals

Examples of Metamorphic Rocks :

• Gneiss

• Quartzite

• Slate

• Marble

• All of them

Metamorphic rocks are formed because of

What is soil made of?

• Air

  Water

  Rock fragments Humus: decayed plants and animals

• Chocolate powder