ASVAB General Science Test 5

Question 1

Which organ in the human body is primarily responsible for filtering blood and producing urine?

Accepted Answer

Kidney

Answer

The kidneys filter waste products from the blood and regulate water balance by producing urine.

Question 2

What is the term for a change in state directly from solid to gas without passing through the liquid phase?

Accepted Answer

Sublimation

Answer

Sublimation is the phase transition from solid directly to gas, as seen with dry ice (solid CO₂).

Question 3

Which element is most abundant in Earth's atmosphere by volume?

Accepted Answer

Nitrogen

Answer

Nitrogen makes up approximately 78% of Earth's atmosphere, far exceeding oxygen at about 21%.

Question 4

What type of chemical bond involves the sharing of electrons between atoms?

Accepted Answer

Covalent bond

Answer

A covalent bond forms when two atoms share one or more pairs of electrons to achieve stable configurations.

Question 5

What is the unit used to measure electric current?

Accepted Answer

Ampere

Answer

The ampere (amp) is the SI unit for electric current, measuring the flow of electric charge per second.

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