Which layer of the Earth is liquid?

What type of rock forms from cooled lava?

Fossils are usually found in which type of rock?

The process of rocks breaking down into smaller pieces is called :

What is the hardest natural substance on Earth?

The layer of Earth we live on is called :

What is the main component of the Earth’s core?

The Himalayas were formed due to :

What is the softest mineral on Mohs hardness scale?

What type of volcano is tall and cone-shaped?

Which process moves rocks and soil from one place to another?

Obsidian is a type of :

The study of earthquakes is called :

Shale is a type of :

Which planet has the largest volcano in the solar system?

What is the most common gas in Earth’s atmosphere?

Earthquakes are measured by :

Which mineral is commonly used in pencils?

Sand dunes are mainly formed by :

The study of fossils is called :

Pumice is a type of rock that :

Which rock is commonly used in buildings and monuments?

What type of volcano has gentle slopes and flows of lava?

Which mineral is the main source of aluminum?

Which mineral is used in making plaster and drywall?