ASVAB ASVAB Certifications ASVAB-SECTION-7 Questions & Answers

• Question 151:

  The majority of Earth's air is composed of __________.

  A. Nitrogen

  B. Oxygen

  C. Carbon

  D. Dioxide

  Correct Answer: A

  Explanation:

  Earth's air is approximately 80% nitrogen.

• Question 152:

  About how long does it take the Earth to complete an orbit of the sun?

  A. 1 day

  B. 1 year

  C. 1 month

  D. 1 season

  Correct Answer: B

  Explanation:

  It takes the earth 1 year to complete one trip around the sun.

• Question 153:

  The process of water molecules escaping the Earth's surface and entering the atmosphere is known as __________.

  A. Condensation

  B. Precipitation

  C. Evaporation

  D. Collection

  Correct Answer: C

  Explanation:

  Evaporation is when the sun heats up water and turns it into vapor/stream which then goes into the air.

• Question 154:

  A Celsius temperature of 100 degrees is equivalent to a Fahrenheit temperature of __________.

  A. 100 degrees

  B. 32 degrees

  C. 0 degrees

  D. 212 degrees

  Correct Answer: D

  Explanation:

  Celsius temperature of 100 degrees = 212 degree Fahrenheit

• Question 155:

  Which of the following is a positively charged subatomic particle?

  A. Electron

  B. Proton

  C. Neutron

  D. Nucleus

  Correct Answer: B

  Explanation:

  A Proton is a stable subatomic particle that occurs in all atomic nuclei. It has a positive electric charge.

• Question 156:

  How long does it take the earth to rotate 90 degrees?

  A. 6 hours

  B. 4 hours

  C. 12 hours

  D. 8 hours

  Correct Answer: A

  Explanation:

  The earth rotates 360 degrees in 24 hours, therefore it rotates 90 degrees in 6 hours.

• Question 157:

  Which of the planets has the longest revolutionary period around the sun?

  A. Mercury

  B. Neptune

  C. Earth

  D. Saturn

  Correct Answer: B

  Explanation:

  Neptune is farther away than the other planets and has the longest period of revolution (164.81 earth

  years).

• Question 158:

  Which of the following cloud types occur at the lowest altitude?

  A. Cirrus

  B. Altocumulus

  C. Cirrocumulus

  D. Stratus

  Correct Answer: D

  Explanation:

  Stratus clouds occur below 6,000 feet.

• Question 159:

  Which of the following is not one of the 6 basic animal groups?

  A. Birds

  B. Mammals

  C. Humans

  D. Invertebrates

  Correct Answer: C

  Explanation:

  The six basic animal groups are birds, mammals, invertebrates, fishes, reptiles, and amphibians.

• Question 160:

  The flat, colored, ring-shaped membrane of the eye is called __________.

  A. lens

  B. cornea

  C. iris

  D. pupil

  Correct Answer: C

  Explanation:

  The iris is a flat, colored, ring-shaped membrane that sits behind the cornea. It has an adjustable circular

  opening in the center called the pupil.