What do chromium, mercury, copper, and tin have in common?
A. They are ignitable.
B. They are heavy metals.
C. They are all gases.
D. They are all corrosive materials.
Ans: B. They are heavy metals.
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Suppose it is about 11:00 p.m. on a winter night, and the air cools to the dew point temperature, and a thick radiation fog develops. Which of the following describes what will probably happen to the dew-point temperature in five hours if the air continues to cool during the night?
A. It will increase as the air becomes drier. B. It will decrease as the air becomes moister. C. It will increase as the air becomes moister. D. It will decrease as the air becomes drier.
A mineral specimen with a Mohs hardness of 5 can scratch a mineral specimen with a hardness of 3.
Answer the following statement true (T) or false (F)
Why are the beautiful beaches that rim the Pacific Ocean among the most geologically risky locations to live?
A. Most earthquakes and volcanoes occur there. B. Most tsunami occur there. C. If sea levels rise in the future as predicted, beach locations will be flooded. D. all of the above
In which of the following situations would it probably be less environmentally damaging for you to use paper bags at the grocery store?
A. When paper bags are reused by the grocery store and when paper and plastic bags are both recycled B. When I use plastic grocery bags for my trash instead of buying separate plastic trash bags C. When paper bags are reused by the grocery store D. When paper and plastic bags are both recycled E. All of these are correct