Evaporites in the rock record commonly indicate a period of arid climate. Indicate whether the statement is true or false
T
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What group includes infectious germs, and purifies water by breaking down wastes, decomposes organic wastes into nutrients, and provides much of the world's oxygen?
A. carnivores B. autotrophs C. abiotics D. microbes E. herbivores
Which of the following statements describes a cold front?
A. It marks the position of a trough of high pressure. B. It has warm air behind it. C. It marks a zone of shifting winds. D. It is coloured purple on a weather map.
A(n) ____ is a test involving manipulations made on conditions of a particular observation
a. hypothesis b. experiment c. theory d. scientific method
Hail:
A) requires very strong downdrafts. B) most frequently occurs in sizes greater than two centimeters in diameter. C) can provide the nucleus for graupel formation. D) usually forms in cumuliform clouds.