ASVAB-SECTION-7 Online Practice Questions and Answers

Which of these best defines the term "biosphere"?

A. the part of Earth where life occurs on land

B. the part of Earth where life occurs on land and in the water

C. the part of Earth where life occurs, which includes land, water, and air

D. a collection of populations in a habitat

Which type of clouds are the lowest and responsible when fog occurs?

A. trophic

B. stratus

C. cumulus

D. cirrus

Absolute zero is __________.

A. 0 degrees Fahrenheit

B. 0 degrees Celsius

C. -263 degrees Celsius

D. -32 degrees Fahrenheit

A 120-volt electrical power supply produces 1/2 ampere to the load. The power delivered is __________.

A. 60 watts

B. 60 ohms

C. 240 watts

D. 240 ohms

The temperature of the atmosphere is less during the nighttime hours because __________.

A. the side of the earth not feeing the sun loses heat by convection

B. the side of the earth feeing the sun loses heat by evaporation

C. the side of the earth not feeing the sun loses heat by radiation

D. people set their thermostats lower when they go to bed

What are chloroplasts?

A. Structures found in plant cells that assist in photo synthesis.

B. Organelles found in plant cells that conduct photo synthesis.

C. Substances found in primitive cyanobacteria.

D. Substances found in green plants only after they blossom.

Via which of the following unoxygenated blood travels to the heart?

A. arteries

B. veins

C. capillaries

D. aorta

Protein can be found in all of the following foods EXCEPT __________.

A. eggs

B. meat

C. peas

D. apples

Blood leaving the lungs is __________.

A. hydrogenated

B. coagulated

C. watery

D. oxygenated

Carcinogens are chemicals that cause __________.

A. high blood pressure

B. gene mutations

C. blood clots

D. diabetes