ASVAB General Science Practice Test 449207 Results

Your Results Global Average
Questions 5 5
Correct 0 3.36
Score 0% 67%

Review

1

Earth's history is divided into time periods, which of these is the longest time period? 

67% Answer Correctly

epoch

era

age

eon
Solution

The Earth is approximately 4.6 billion years old and its history is divided into time periods based on the events that took place and the forms of life that were dominant during those periods. The largest graduation of time is the eon and each eon is subdivided into eras, eras into periods, periods into epochs, and epochs into ages.

2

Which of the following represents the largest value?

61% Answer Correctly

1 mL

1 cL

1 ML

1 kL
Solution

Mega (M) is 106, kilo (k) is 103, centi (c) is 10-2, milli (m) is 10-3 so 1 ML represents the largest value.

3

What is a major difference between the somatic and autonomic nervous systems?

82% Answer Correctly

one controls voluntary activity, one controls involuntary activity

one is inherited, the other is learned

one controls thinking, the other controls feeling

each belongs to a different nervous system
Solution

Both are part of the peripheral nervous system. The somatic nervous system sends sensory information to the central nervous system and controls voluntary actions while the autonomic nervous system regulates involuntary activity in the heart, stomach, and intestines.

4

__________ and __________ pair to strengthen bones.

65% Answer Correctly

calcium, vitamin A

vitamin D, calcium

iron, calcium

vitamin D, magnesium
Solution

Vitamin D helps calcium strengthen bones while also aiding muscle, nerve, and immune system function.

5

Which of the following is the correct order for types of radiation from longest to shortest wavelength?

59% Answer Correctly

microwaves → radio waves → visible light

radio waves → visible light → gamma rays

visible light → ultraviolet light → radio waves

infrared waves → microwaves → ultraviolet light
Solution

The electromagnetic spectrum covers all possible wavelengths and frequencies of radiation.  From lowest frequency (longest wavelength) to highest frequency (shortest wavelength) radiation: radio waves → microwaves → infrared waves → visible light → ultraviolet light → X-rays → gamma rays.