ASVAB General Science Practice Test 42011 Results

Your Results Global Average
Questions 5 5
Correct 0 2.72
Score 0% 54%

Review

1

Which of the following substances gives up negatively charged hydroxide ions (OH-) when dissolved in water?

42% Answer Correctly

ion

hydrogen

base

acid
Solution

An acid is a substance that gives up positively charged hydrogen ions (H+) when dissolved in water. A base (alkaline) gives up negatively charged hydroxide ions (OH-) when dissolved in water. pH is a scale that measures of how basic or acidic a solution is. Numbered from 0 to 14, solutions with a pH of 7 are neutral, less than 7 are acidic, more than 7 are alkaline.

2

When the clouds become too saturated with water, the water is released as precipitation in the form of:

29% Answer Correctly

ice

snow

rain

snow or ice
Solution

Rising into the atmosphere, the water condenses into clouds. When the clouds become too saturated with water, the water is released as snow or ice precipitation which may warm as it falls to reach Earth as rain.

3

As part of digestion, the liver produces bile which breaks down:

64% Answer Correctly

protein

fat

sugars

starches
Solution

The liver produces bile which emulsifies (separates) fat.

4

Which is the proper order of Earth's atmospheric layers from the surface up to space?

58% Answer Correctly

mesosphere, thermosphere, stratosphere, troposphere

troposphere, stratosphere, mesosphere, thermosphere

stratosphere, troposphere, mesosphere, thermosphere

thermosphere, mesosphere, stratosphere, troposphere
Solution

The troposphere is the closest layer to Earth, followed by the stratosphere, mesosphere, and finally the thermosphere which borders space.

5

Minerals, vitamins, and fiber are:

69% Answer Correctly

proteins

micronutrients

macronutrients

carbohydrates
Solution

Minterals, vitamins, and fiber are micronutrients while proteins, carbohydrates, and fats are macronutrients.