Saturn
Uranus
Neptune
600

Graphite is classified as this type of earth material.

What is mineral?

600

The period during which the largest mass extinction in Earth's history occurred.

What is the Permian period?

600

These are the top three products of the Philippine mining industry.

What are gold, nickel, and copper?

700

Table salt (NaCl) is classified as this type of mineral using the chemical classification system.

What is a halide?

700

This refers to the movement of Earth in its orbit.

What is revolution?

700

The scientific name of Lolong, a saltwater crocodile, which is the largest reptile in captivity.

What is Crocodylus porus?

800

This physical property of a mineral is the color of the mineral when powdered, and is more reliable for identification than its color in solid form.

What is streak?

800

This term refers to Venus as it spins on its axis in the opposite direction.

What is retrograde planet?

800

This type of rock is abundant in Romblon, which is commonly used as a construction material.

What is metamorphic rock (marble)?

900

The two most abundant elements in the Earth's crust form this type of mineral.

What are silicates?

900

This plate movement caused the formation of the Philippine Sea Plate in the Cretaceous period.

What is divergent plate boundary (seafloor spreading)?

900

This mineral is the only ore of chromium and is produced in the Philippines for stainless steel production.

What is chromite?

1000

Pyrite (FeSâ‚‚) belongs to this mineral chemical class based on its composition.

What are sulfides?

1000

This process exposed the ancient sea floor as it thrust upward onto land.

What is obduction?

1000

This type of rock, found in Semirara Island in Antique, is used as an energy source.

What is sedimentary rock (coal)?