ASVAB/AFCT General Science Verified Practice Questions With 100% Correct Answers Graded A+.

Citrus fruits include - correct answer Citrus fruits include lemons, limes, oranges, and grapefruits.(oranges) What temperature is shown on a Fahrenheit thermometer when a centigrade thermometer reads 0º? - correct answer Water freezes at 0° on a centigrade or Celsius thermometer. Water freezes at 32° Fahrenheit.(32 degrees) The major chemical constituent of a cell, by weight, is - correct answer The major chemical constituent of a cell by importance is protein but by weight it is water.(water) Which of the following is NOT a viral disease? - correct answer Syphilis is caused by the spirochete Treponema pallidum. The spirochete is a type of bacteria.(Syphilis) Alcoholic beverages contain - correct answer Alcoholic beverages contain grain alcohol. Wood alcohol is methyl alcohol, which is extremely toxic; drinking it may cause blindness. Isopropyl alcohol is rubbing alcohol. Glyceryl alcohol is an industrial solvent.(grain alcohol) The air around us is composed mostly of - correct answer Nitrogen constitutes about four fifths of the earth's atmosphere, by volume.(nitrogen) The process that is responsible for the continuous removal of carbon dioxide from the atmosphere is - correct answer By the process of photosynthesis, green plants remove carbon dioxide from the atmosphere and replace it with oxygen.(photosynthesis) Ringworm is caused by a(n) - correct answer Ringworm is a skin disease caused by a fungus. (fungus) Light passes through the crystalline lens in the eye and focuses on the - correct answer Light enters the eye through the pupil (the opening in the center of the iris), travels through the transparent crystalline lens, then travels through the vitreous humor (eyeball), and finally focuses on the retina. (retina) Which of the following processes is responsible for the removal of oxygen from the atmosphere? - correct answer Respiration requires oxygen while photosynthesis requires carbon dioxide (respiration) The vitamin that helps coagulation of the blood is - correct answer Vitamin K is useful in the coagulation of blood. Vitamin C prevents scurvy; Vitamin E helps maintain red blood cells and aids in fertility; and Vitamin D prevents rickets. (K) Of the following, the part of a ship that gives it stability by lowering the center of gravity is the - correct answer The keel is the part of the ship that gives it stability. A bulkhead is a wall, the anchor keeps the ship from moving, and the prow is the front of the ship(Keel) To reduce soil acidity, a farmer should use - correct answer Lime is highly alkaline. (lime) Which of the following will cause Athlete's foot? - correct answer Athlete's foot is caused by a fungus and could be considered a pathogen. Algae, bacteria, and protozoa are non-disease causing agents (fungus) Bacteria of decay help - correct answer Decay bacteria decompose organic compounds of dead organisms to inorganic compounds, which enrich the soil(enrich soil) Of the following, the food that contains the largest amount of Vitamin C is - correct answer All vegetables contain some Vitamin C, and yellow vegetables contain more Vitamin C than green ones. However, tomatoes contain nearly as much Vitamin C as citrus fruits(tomatoes) The cyclotron is used to - correct answer The cyclotron is the machine that splits atoms (split atoms) The earth completes one trip around the sun approximately every - correct answer It takes the earth one year to complete an orbit of the sun. A year contains 365 days, or 52 weeks. (52 weeks) A person is more buoyant when swimming in saltwater than in freshwater because - correct answer The weight of the saltwater displaced by a human body is greater than the weight of freshwater displaced by that same body. Because the water displaced is heavier, the body is proportionally lighter and is more buoyant. (saltwater weighs more than an equal volume of freshwater.) A volcanic eruption is caused by - correct answer Boiling lava erupts from a volcano. The force that causes the eruption is pressure inside the earth. (pressure inside the earth.) The scientific name of an organism consists of its - correct answer The scientific name of an organism consists of the genus and the species (genus and species.) Which organelle is responsible for the eye focusing? - correct answer The lens, located behind the pupil, focuses light which is then received by the retina and from there converted into neural signals to be used by the brain for visual recognition(lens) Which of the following acids is found in the digestive system? - correct answer Gastric acid, gastric juice or stomach acid, is a digestive fluid formed in the stomach and is composed of hydrochloric acid (HCl), potassium chloride (KCl) and sodium chloride (NaCl) (hydrochloric) When two forces act on an object in opposite directions, the resultant force is equal to the - correct answer . When two forces act on an object in opposite directions, the resultant force produced is equal to the difference between the two forces (difference between the forces.) Which vitamin can be intensified by the sun? - correct answer Known as the sunshine vitamin, vitamin D is produced by the body in response to skin