ASVAB PICAT GENERAL SCIENCE

ASVAB PICAT GENERAL SCIENCE Which of these is the best explanation of how a smooth round stone became smooth? A. continuous freezing and thawing B. volcanic action C. it fell off the side of a cliff D. it was in a stream for a long time Ans- D. it was in a stream for a long time When a lobster grows a claw to replace one that was lost, the process is called A. restoration B. retraction C. regeneration D. reproduction Ans- C. regeneration Any astronomical body that revolves around a larger body is called A. a nova B. a comet C. a satellite D. an astroid E. a meteoroid Ans- C. a satellite In chemistry, to be classified as an organic substance must contain A. sugar molecules B. sodium atoms C. carbon atoms D. water molecules Ans- C. carbon atoms According to their locations on the Periodic Table, argon (Ar) and neon (Ne) are A. ionic B. radioactive C. liquid metals D. noble gases Ans- D. noble gases To test the effectiveness of plant fertilizer, groups of plants are grown with different types of fertilizer. A control group of plants would A. not be given any fertilizer B. be grown with a mixture of all fertilizers C. not be needed unless the results were unclear D. be grown in a different location from the other groups Ans- A. not be given any fertilizer When scientists measure a liquid's resistance to flow, they are measuring he liquid's A. density B. solubility C. viscosity D. permeability Ans- C. viscosity Regeneration in man is limited to A. reproduction B. fertilization C. experimentation D. healing of wounds Ans- D. healing of wounds By definition, an aquifer is A. a layer of sedimentary rock formed by water deposits B. an ocean floor consisting of unconsolidated sediments and muds C. river bottom made up of gravel and sedimentary rock D. permeable rock that contains or carries water Ans- C. river bottom made up of gravel and sedimentary rock Which of the following reproduce by spawning? A. butterflies B. birds C. bats D. fish Ans- D. fish Which of the following is the best illustration of centripetal force? A. ice skater spinning on the ice B. skier zigzagging down a slope C. bicycle rider coasting down a hill D. scuba diver descending in the water Ans- A. ice skater spinning on the ice In a balanced aquatic ecosystem, which of the following would have the greatest population? A. fish B. crabs C. sharks D. plankton Ans- D. plankton Using the list, which of the following presents the stages of the water cycle in the correct order? 1. water vapor cools 2. precipitation occurs 3. evaporation occurs 4. condensation occurs 5. sunlight heats pond water A. 1 = 4 = 2 = 5 = 3 B. 5 = 2 = 1 = 4 = 3 C. 1 = 3 = 2 = 4 = 5 D. 5 = 3 = 1 = 4 = 2 Ans- D. 5 = 3 = 1 = 4 = 2 if you place bean seeds between moist paper towels and watch the stem and leaves appear you will see a demonstration of ? Ans- germination which element does not contain any neutrons? Ans- Hydrogen/protium what is the symbol for hydrox ion Ans- OHa perpetual motion machine can never be built because it's not possible to eliminate?? Ans- elasticity the chemical formula of a compound describes the elemen