Anions are negatively charged and cations are positively charged.

Answer the following statement true (T) or false (F)


True

Environmental & Atmospheric Sciences

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In a superior mirage, the false image occurs

A) below the actual image. B) above the actual image. C) both above and below the actual image.

Environmental & Atmospheric Sciences

For a rock to be considered an ore, it must

A. be shiny or otherwise noteworthy. B. contain enough of a commodity to be mined at a profit. C. contain some copper or gold. D. contain either quartz or sulfide minerals. E. be located in a mine.

Environmental & Atmospheric Sciences

All of the following are externalities generated by urban sprawl EXCEPT

A) uneven development. B) irrational use of space. C) traffic congestion. D) pollution. E) urban homesteaders.

Environmental & Atmospheric Sciences

Which of the following statements about marine sediments is correct?

A) They are useful for determining the distribution of ancient dinosaurs. B) They contain plant fossils used to map the movement of the continents. C) They provide a discontinuous, disturbed record of Earth history. D) They record the timing and severity of some global extinction events. E) They represent Earth history dating back for billions of years.

Environmental & Atmospheric Sciences