ASVAB General Science Practice Test 981532 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.02
Score	0%	60%

Review

During the water cycle, water enters the atmosphere as a gas through which process?

27% Answer Correctly

	transpiration
	evaporation
	both evaporation and transpiration
	precipitation

Solution

The water (hydrologic) cycle describes the movement of water from Earth through the atmosphere and back to Earth. The cycle starts when water evaporates into a gas from bodies of water like rivers, lakes and oceans or transpirates from the leaves of plants.

What part of the nervous system controls simple reflexes?

54% Answer Correctly

	cerebrum
	spinal cord
	autonomic
	medulla

Solution

The spinal cord connects the brain to the body's network of nerves. It carries impulses between all organs and the brain and controls simple reflexes.

Saturated fats can __________ LDL ("bad") cholesterol while unsaturated fats can __________ it.

78% Answer Correctly

	decrease, raise
	decrease, stabilize
	stabilize, raise
	raise, decrease

Solution

Saturated fats can raise LDL ("bad") cholesterol while unsaturated fats can decrease it.

Generally, an atom has __________ negative electrons orbiting the nucleus as it does positive protons inside.

67% Answer Correctly

	more
	fewer
	double the number of
	equal numbers of

Solution

An electron is a subatomic particle that orbits the nucleus of an atom. It carries a negative electric charge. Generally, an atom has the same number of negative electrons orbiting the nucleus as it does positive protons inside.

Which of the following is not true of light waves?

62% Answer Correctly

	travel faster than sound waves
	are electromagnetic waves
	are mechanical waves
	can travel through a vacuum

Solution

Unlike mechanical sound waves that require a physical medium for propagation, light waves are electromagnetic and can travel through empty space. Light waves are also much faster, travelling at 186,000 m/s vs. 343 m/s for sound waves.