Which of the following nuclear equations correctly describes alpha emission?

A. Th ? Pa + e
B. Th ? Pa + e
C. Th ? e
D. Th ? Ac + e
E. none of the above


Answer: E

Environmental & Atmospheric Sciences

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Which of the following is false as regards the jet streams?

A) The polar jet stream and subtropical jet stream may appear over North America simultaneously. B) The polar jet stream can migrate as far south as Texas, steering colder air masses into North America. C) They weaken during each of the hemisphere's summer and strengthen during its winter. D) The pattern of ridges and troughs causes variations in jet stream speeds. E) They have no known effect on surface weather systems.

Environmental & Atmospheric Sciences

At the beginning of each World War, the U.S. was reluctant to become involved and practiced the policy of __________

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences

_____ are seismically inactive areas of oceanic ridges that show evidence of past transform fault activity

a. Seamounts b. Hydrothermal vents c. Fracture zones d. Abyssal plains e. Abyssal hills

Environmental & Atmospheric Sciences

A hurricane will lose strength as it moves over land.

a. true b. false

Environmental & Atmospheric Sciences