ASVAB General Science Practice Test 267310 Results

Your Results Global Average
Questions 5 5
Correct 0 3.62
Score 0% 72%

Review

1

DNA is encoded through a combination of which of the following?

47% Answer Correctly

gametes

helix

genes

nucleotides


Solution

Deoxyribonucleic acid (DNA) is the molecule that contains genetic information. DNA is encoded through a combination of nucleotides that bind together in a specific double helix pattern.


2

Which of these layers is found directly below the Earth's crust?

71% Answer Correctly

mantle

outer core

continents

inner core


Solution

The crust is the Earth's outermost layer and is divided into oceanic and continental types. Oceanic crust is 3 miles (5 km) to 6 miles (10 km) thick and is composed primarily of denser rock. Continental crust is 20 to 30 miles (30 to 50 km) thick and composed primarily of less dense rock. The crust makes up approximately one percent of the Earth's total volume.


3

The hottest of Earth's atmospheric layers is which of the following?

74% Answer Correctly

troposphere

thermosphere

stratosphere

mesosphere


Solution

Temperatures again increase with altitude in the thermosphere which is the hottest (4,530 °F / 2,500 °C) atmospheric layer due to direct exposure to the Sun's radiation. However, the gas in this layer is highly diluted so even though the atoms of gas may be very high in temperature, there are too few of them to effectively transfer much heat.


4

Which of the following states of matter exists at the highest temperature?

68% Answer Correctly

solid

liquid

none of these

gas


Solution

Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.


5

Carbohydrates are found in:

88% Answer Correctly

vegetable oils

animal sources

sugars and starches

food additives


Solution

Carbohydrates are major sources of energy for the body and are found in sugars (fruit, cane sugar, beets) and starches (bread, rice, potatoes, pasta).