Class 7 Geography Inside our earth

The uppermost layer of the earth is called

• Crust

• Mantle

• Core

The layer between the crust and the core is called

• Crust

• Mantle

• Core

The outer core is made of

• Iron and silicon

• Iron and nickel

• Silica and Aluminium

The inner core is made up of

• Iron and nickel

• Iron

• Silica

The innermost layer of the earth is

• Nife

• Sial

• Mesosphere

The lower mantle is made up of

• Molten material

• Solid metal

• Hard rocks

The inner core is made up of

• Lava

• Solid metal

• Molten material

Rocks containing metals in large quantity are called

• Minerals

• Ores

• Fossi

The hardest mineral is

• Granite

• Quartzite

• Diamond

Heat and pressure inside the earth changes limestone into

• Marble

• Sandstone

• Quartzite