________ are groups of the same kinds of atoms that cannot be broken down into other substances by ordinary chemical means
A) Molecules
B) Electrons
C) Elements
D) Minerals
Answer: C
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A farmer has planted a field of clover as a cover crop to protect his field from erosion during the winter months. In the spring, he plows the clover into the topsoil. What kind of fertilizer does this technique create?
A. green manure B. animal manure C. compost D. synthetic
Why is carbon better than lead as a moderator in nuclear reactors?
A. Carbon slows down the neutrons making them more effective in stimulating the nuclear chain reaction. B. Lead slows down the neutrons making them less effective in stimulating the nuclear chain reaction. C. Carbon produces the high energy, high speed neutrons necessary for maintaining the nuclear chain reaction. D. Lead absorbs the neutrons rather than allowing them to rebound to maintain the nuclear chain reaction.
Residential real estate has always been the bread and butter of commercial banking
Indicate whether the statement is true or false
________ tends to deform objects into oblong or flattened forms.
A. Magnetism B. Differential stress C. Strain D. Pressure E. Temperature