Igneous rocks

Igneous rocks are formed…

• by the erosion of sedimentary rocks
• through the solidification and cooling of magma or lava
• through the evaporation of water
• from the compression of organic matter

What is the strongest igneous rock?

• Granite
• Obsidian
• Quartz
• Diamond

What is the most common extrusive igneous rock?

• Basalt

• Pumice

• Rhyolite

• Gabbro

How are sedimentary rocks formed?

• Through the cooling of magma

• By the accumulation of sediments

• By the metamorphism of existing rocks

• Through volcanic eruptions

Which type of rock is formed by the alteration of existing rocks under high temperatures and pressures?

• Sedimentary rock

• Igneous rock

• Metamorphic rock

• Extrusive rock

How many igneous rocks are there

• Igneous rocks are all the same
• Igneous rocks are not real
• There is only one type of igneous rock
• There are hundreds of different types of igneous rocks.

What process forms sedimentary rocks?

• Volcanic eruptions

• Accumulation of sediments

• Metamorphism of existing rocks

• Weathering of igneous rocks

Which type of rock is formed from the cooling and solidification of magma or lava?

• Sedimentary rock

• Igneous rock

• Metamorphic rock

• Extrusive rock

What is the most common metamorphic rock?

• Marble

• Basalt

• Quartzite

• Pumice

How much does a diamond cost

• Diamonds are free
• The cost of a diamond varies and cannot be determined without specific details.
• Diamonds cost the same everywhere
• Diamonds cost $1