ASVAB General Science Practice Test 90274 Results

	Your Results	Global Average
Questions	5	5
Correct	0	2.77
Score	0%	55%

Review

Which of the following is true about species groups?

47% Answer Correctly

	an ecosystem is a biological population
	a population is made up of a group of communities
	a community is made up of a group of populations
	a biome is a made up of a group of biospheres

Solution

A population is a group of organisms of the same species who live in the same area at the same time. A community is a group of populations living and interacting with each other in an area.

What type of cloud is responsible for fog?

63% Answer Correctly

	stratus
	cumulonimbus
	cirrus
	cumulus

Solution

Clouds are categorized based on their shape, size, and altitude. Stratus clouds are low-altitude clouds characterized by horizontal layering with a broad flat base. When stratus clouds occur on the ground the result is fog.

As a cold front moves into an area, the heavier cool air __________ the lighter warm air that it is replacing.

66% Answer Correctly

	pushes under
	pushes above
	cancels out
	mixes with

Solution

A cold front is a warm-cold air boundary with the colder air replacing the warmer. As a cold front moves into an area, the heavier cool air pushes under the lighter warm air that it is replacing. The warm air becomes cooler as it rises and, if the rising air is humid enough, the water vapor it contains will condense into clouds and precipitation may fall.

Which of the following describes the Earth's mantle?

55% Answer Correctly

	solid
	liquid
	primarily solid
	primarily liquid

Solution

Mantle makes up 84% of the Earth's volume and has an average thickness of approximately 1,800 miles (2,900 km). It is dense, hot, and primarily solid although in places it behaves more like a viscous fluid as the plates of the upper mantle and crust gradually "float" along its circumference.

In the food chain, omnivores may be which of the following?

46% Answer Correctly

	primary or secondary consumers
	secondary or tertiary consumers
	primary or tertiary consumers
	secondary consumers or scavengers

Solution

Secondary or tertiary consumers may be omnivores.