ASVAB General Science Practice Test 1 2

Question 1

What is the process by which plants convert sunlight, water, and carbon dioxide into glucose and oxygen?

Accepted Answer

Photosynthesis

Answer

Cellular respiration

Answer

Fermentation

Answer

Transpiration

Question 2

A rock layer contains fossils of marine animals, yet the rock is found on a mountaintop. What does this most likely indicate?

Accepted Answer

The mountaintop was once covered by a sea, and geological forces lifted it over time

Answer

The fossils were carried there by a large animal

Answer

Marine animals once lived at high altitudes in the past

Answer

The rock layer formed from volcanic activity that mimics marine features

Question 3

Which of the following describes a physical change rather than a chemical change?

Accepted Answer

Ice melting into liquid water

Answer

Iron rusting when exposed to water and oxygen

Answer

Wood burning to produce ash and smoke

Answer

Baking soda and vinegar reacting to produce carbon dioxide gas

Question 4

What is the primary function of red blood cells (erythrocytes)?

Accepted Answer

To transport oxygen from the lungs to body tissues using hemoglobin

Answer

To fight infections and produce antibodies

Answer

To initiate blood clotting at sites of injury

Answer

To remove waste products from tissues

Question 5

According to Newton's Third Law of Motion, when a swimmer pushes backward against the water, what happens?

Accepted Answer

The water pushes forward on the swimmer with an equal and opposite force

Answer

The water absorbs the force and nothing pushes back

Answer

The swimmer's force decreases the water's momentum

Answer

The swimmer experiences a smaller reaction force due to water's density

Question 6

What layer of Earth's atmosphere contains the ozone layer that protects Earth from harmful ultraviolet radiation?

Accepted Answer

Stratosphere

Answer

Troposphere

Answer

Mesosphere

Answer

Thermosphere