CSET CSET Science: Earth and Space Sciences 1

Question 1

Which layer of Earth is composed primarily of iron and nickel in a solid state?

Accepted Answer

Inner core

Answer

The inner core is solid iron and nickel because the immense pressure at Earth's center exceeds the melting point threshold, keeping it solid despite extremely high temperatures.

Question 2

What type of plate boundary is associated with the formation of mountain ranges like the Himalayas?

Accepted Answer

Continental-continental convergent boundary

Answer

When two continental plates collide at a convergent boundary, neither subducts, so both plates crumple upward, forming mountain ranges like the Himalayas.

Question 3

The San Andreas Fault in California is an example of which type of plate boundary?

Accepted Answer

Transform boundary

Answer

The San Andreas Fault is a transform boundary where the Pacific and North American plates slide horizontally past each other, generating frequent earthquakes.

Question 4

Which process is primarily responsible for the movement of tectonic plates?

Accepted Answer

Convection currents in the mantle

Answer

Convection currents in the semi-fluid mantle, driven by heat from Earth's interior, create drag forces that move tectonic plates.

Question 5

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

Accepted Answer

Igneous rock

Answer

Igneous rock forms when magma (underground) or lava (at the surface) cools and crystallizes; the name derives from the Latin word for fire.

CSET Test Practice Test

CSET Test Practice Test

CSET CSET Science: Earth and Space Sciences 1