There is good evidence that life on Earth was thriving prior to 3.85 billion years ago
Indicate whether the statement is true or false
TRUE
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The most powerful agent of erosion is
A) stream flow. B) glacial action. C) action from waves and ocean currents. D) wind.
Iron atoms have a greater tendency to oxidize than do copper atoms. Is this good news or bad news for a home in which much of the plumbing consists of iron and copper pipes connected together? Explain
A) This is bad news, since the iron atoms will be reduced by the copper atoms. B) This is not a problem, since the strength of the copper will make up for the weakness of the iron. C) It is bad news. The iron atoms will lose electrons to the copper atoms, which will pass those electrons onto oxygen atoms that are in contact with the surface. D) This is not a problem since any electrons lost will be replaced by copper electrons.
In which material does light travel fastest?
A) glass B) water C) plastic D) air E) same for all
A hologram is produced from the ________ of a reference beam and an object beam.
Fill in the blank(s) with the appropriate word(s).