NAFS Practice Test

Hurricanes typically form over

• cold ocean water.

• areas of high pressure.

• warm ocean water.

• very dry land masses.

Water vapor enters the atmosphere by what process?

• evaporation

• condensation

• precipitation

• humidity

A type of organism that no longer exists on Earth is said to be

• fossilized.

• sedimentary.

• extinct.

• petrified.

What soil particles are the largest?

• clay

• silt

• sand

• gravel

The solar system consists of the sun, several kinds of smaller objects such as comets and asteroids, and

• eight planets and their moons.

• the star Proxima Centauri.

• six planets and their moons.

• more than 100 planets.

The part of the Earth system that contains all of Earth's water is called the

• atmosphere.

• geosphere.

• hydrosphere.

• biosphere.

The repeating pattern of a mineral’s particles forms a solid called a(n)

• crystal.

• element.

• compound.

• rock.

Which layer of Earth is the hottest?

• Crust

• Mantle

• Outer Core

• Inner Core

Which process is responsible for the movement of tectonic plates?

• Conduction

• Convection currents in the mantle

• Radiation

• Erosion

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

• Oxygen

• Carbon dioxide

• Nitrogen

• Argon