Rocks and Minerals Knowledge Assessment

The video tutorial covers the basics of rocks and minerals, explaining their formation, types, and uses. It discusses igneous, sedimentary, and metamorphic rocks, along with fossil fuels like coal and petroleum. The video also highlights the significance of minerals, ores, and gemstones, providing examples and applications in daily life.

What is the primary composition of the Earth's crust?

• Water and air

• Rocks and soil

• Lava and magma

• Sand and clay

Which type of rock is formed from lava that cools quickly?

• Marble

• Basalt

• Slate

• Granite

Which rock is commonly used for making statues and flooring?

• Obsidian

• Sandstone

• Shale

• Granite

Which mineral is used to test the purity of gold?

• Pumice

• Basalt

• Quartz

• Obsidian

What is the main mineral component of limestone?

• Quartz

• Calcite

• Feldspar

• Mica

Which type of rock is formed by the sedimentation of broken rock materials?

• Igneous

• Volcanic

• Sedimentary

• Metamorphic

Which rock is known for its ability to split into thin layers?

• Basalt

• Obsidian

• Slate

• Granite

What is the hardest natural substance known?

• Coal

• Graphite

• Diamond

• Quartz

What is the primary use of anthracite coal?

• Jewelry making

• Fuel

• Polishing

• Building material

What is the main difference between ores and minerals?

• Ores are always metallic

• Ores can be profitably extracted

• Minerals are only found in rocks

• All minerals are ores