Structure of Earth-7

Our Earth is ............... years old.

• 4 billion

• 4.5 billion

• 4.5 million

• 4 million

We live in .............

• inside the Earth

• crust

• Atmosphere

• Core

............... percent of earth's surface is covered by water.

• 71%

• 70%

• 80%

The outermost layer of earth is.

• crust

• Mantle

• Core

Which element is found more in crust

• Oxygen

• Silicon

• Nitrogen

The thickness of mantle is .....

• 2900 km

• 2500km

• 2100km

Everything is found in molten state in......

• crust

• Upper layer of mantle

• Lower mantle and outer core

• Inner core

The......... has highest temperature

• crust

• mantle

• inner core

• Outer core

The inner core is in...... state

• molten

• Solid

• Semi-liquid

The rock which is formed due to volcanic eruption.

• Igneous rock

• Sedimentary rock

• metamorphic rock