Answer the following question given this paragraph: Q: What is the process that breaks down rocks into smaller pieces? Choices: - erosion - bracing - bleaching - weathering A:
weathering
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Answer the following question given this paragraph: Solution: The force acting to move the system is the weight of box B, and the force resisting the movement is the force of friction between the table and box A. The mass of the system is the sum of the masses of both boxes. The acceleration of the system can be found by dividing the net force by the total mass. Q: Dividing net force by total mass yields what? Choices: - energy - transmission - movement - acceleration A:
acceleration
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Answer the following question given this paragraph: Similarly, monoprotic bases are bases that will accept a single proton. Diprotic acids contain two ionizable hydrogen atoms per molecule; ionization of such acids occurs in two steps. The first ionization always takes place to a greater extent than the second ionization. For example, sulfuric acid, a strong acid, ionizes as follows: K a1 = more than 10 2 ; complete dissociation. Q: What is the basic characteristic of monoprotic bases? Choices: - accepts one neutron - accepts no neutrons - accepts no protons - accepts one proton A:
accepts one proton
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Answer the following question given this paragraph: Most cancers are caused by mutations. Mutations are random errors in genes. Mutations that lead to cancer usually occur in genes that control the cell cycle. Because of the mutations, abnormal cells are allowed to divide. Q: What is the most common cause of cancer? Choices: - poor diet - smoking - technology mutations - cell mutations A:
cell mutations
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