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ASVAB Study Guide-2022.
Bone is composed primarily of which inorganic material? a. calcium b. phosphorus c. collagen d. potassium - THE CORRECT ASNWER IS Calcium Calcium is the most abundant mineral found in bones, as well as in the entire body. Which of these is a biome? a. desert b. cornfield c. hear of bison d. beehive - THE CORRECT ASNWER IS Desert A biome is a large ecological community that includes specific plants and animals, such as a desert. Which planet orbits closest to Earth? a. Mercury b. Venus c. Jupiter d. Saturn - THE CORRECT ASNWER IS Venus Venus's orbit is closest to Earth. Venus is the second planet from the sun, and Earth is the third planet from the sun. What is the name of the phenomenon when a star suddenly increases in brightness and then disappears from view? a. aurora b. galaxy c. black hole
d. supernova - THE CORRECT ASNWER IS Supernova Before a star collapses, the star burns brighter for a period of time and then fades before view. This is a supernova. Which organism has cells that contain mitochondria? a. whale b. mushroom c. tulip d. all of the above - THE CORRECT ASNWER IS All of the above Plant, animal, and fungi cells have mitochondria. Isotopes of an element will have the same number of _______ and different numbers of
? a. electrons; neutrons b. neutrons; electrons c. protons; neutrons d. protons; electrons - THE CORRECT ASNWER IS Protons; neutrons Isotopes are atoms of the same element with the same number of protons but different numbers of neutrons. What condition can be diagnosed by an electrocardiogram (EKG)? a. diabetes b. torn ligaments c. cancer d. tachycardia - THE CORRECT ASNWER IS Tachycardia Tachycardia is an abnormally fast heart rate, and electrocardiogram shows the electrical activity of the heart. What are the negatively charged particles inside an atom? a. protons b. neutrons
Bases have a pH between 7 and 14. Which body system is responsible for the release of growth hormones? a. digestive system b. endocrine system c. nervous system d. circulatory system - THE CORRECT ASNWER IS Endocrine system The endocrine system releases hormones, including growth hormone. What is the term for the top layer of the earth's surface? a. exosphere b. lithosphere c. atmosphere d. biosphere - THE CORRECT ASNWER IS Lithosphere The lithosphere is the top layer of the earth's surface. Which of the following describes a physical change? a. water becomes ice b. batter is baked into a cake c. an iron fence rusts d. a firecracker explodes - THE CORRECT ASNWER IS Water becomes ice When water changes form, it does not change the chemical composition of the substance. Once water becomes ice, the ice can easily turn back into water. Which energy source is nonrenewable? a. water b. wind c. coal d. sunlight - THE CORRECT ASNWER IS Coal Coal is nonrenewable because once coal is burned, it cannot be quickly replaced. How long does it take the earth to rotate on its axis?
a. one hour b. one day c. one month d. one year - THE CORRECT ASNWER IS One day Earth takes approximately twenty-four hours to rotate on its axis. During what process do producers make sugars and release oxygen? a. digestion b. chloroplast c. decomposition d. photosynthesis - THE CORRECT ASNWER IS Photosynthesis Photosynthesis describes the process by which plants convert the energy of the sun into stored chemical energy (glucose). 2C6H14+19O2->12CO2+14H2O a. substitution reaction b. acid-base reaction c. decomposition reaction d. combustion reaction - THE CORRECT ASNWER IS Combustion reaction Combustion is defined as a reaction in which a hydrocarbon reacts with O2 to produce CO2 and H2O. Which factor is an abiotic part of an ecosystem? a. producers b. consumers c. water d. decomposers - THE CORRECT ASNWER IS Water Nonliving things in an ecosystem, like air and water, are abiotic factors. What is the primary function of the respiratory system?
d. A strong acid will not ionize - THE CORRECT ASNWER IS A strong acid completely ionizes in water Strong acids break apart into their constituent ions immediately when placed in water. Which action is an example of mechanical weathering? a. Calcium carbonate reacts with water to form a cave b. An iron gate rusts c. Tree roots grow under the foundation of a house cause cracks d. Bananas turn brown after they are peeled - THE CORRECT ASNWER IS Tree roots grown under the foundation of a house cause cracks Mechanical weathering involves breaking a substance down without changing the composition of the substance. A high school cross country team sent 25% of its runners to a regional competition. Of these, 10% won medals. If 2 runners earned medals, how many members does the cross country team have? a. 8 b. 10 c. 80 d. 125 - THE CORRECT ASNWER IS Convert 55 meters to feet (round to the nearest tenth of a foot) a. 16.8 feet b. 21.7 feet c. 139.7 feet d. 180.4 feet - THE CORRECT ASNWER IS If a person reads 40 pages in 45 minutes, approximately how many minutes will it take her to read 265 pages? a. 202 b. 236 c. 265
d. 298 - THE CORRECT ASNWER IS If three burgers and two orders of fries cost $26.50 and a burger costs $6.50, how much does one order of fries cost? a. $1. b. $3. c. $6. d. $7.00 - THE CORRECT ASNWER IS A work was paid $15,036 for 7 months of work. If he received the same amount each month, how much was he paid for the first 2 months? a. $2, b. $4, c. $5, d. $6,444 - THE CORRECT ASNWER IS The average speed of cars on a highway (s) is inversely proportional to the number of cars on the road (n). If a car drives at 65 mph when there are 250 cars on the road, how fast will a car drive when there are 325 cars on the road? a. 50 mph b. 55 mph c. 60 mph d. 85 mph - THE CORRECT ASNWER IS The probability of drawing a blue marble from a bag of marbles is 1/20 and the probability of drawing a red marble from the same bag is 7/20. What is the probability of drawing a blue marble or a red marble? - THE CORRECT ASNWER IS The population of a town was 7,250 in 2014 and 7,375 in 2015. What was the percent increase from 2014 to 2015 to the nearest tenth of a percent? a. 1.5% b. 1.6% c. 1.7% d. 1.8% - THE CORRECT ASNWER IS
