Beneath an intense thunderstorm, the downdraft may become localized so that it hits the ground and spreads horizontally in a radial burst of wind. This is called a(n) ____

A) dry line
B) outflow boundary
C) squall line
D) downburst


D

Environmental & Atmospheric Sciences

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Volcanic mountains are produced by

A. the movement of magma. B. tectonic compression. C. tectonic forces. D. tectonic tension.

Environmental & Atmospheric Sciences

In January, 2002, an object 0.3 km across passed within 800,000 km of Earth, only roughly twice the distance to the moon

a. True b. False

Environmental & Atmospheric Sciences

Which event did not occur in the Hadean (4.6-4.0 bya)?

a. formation of oceans b. extremely bright Sun c. formation of Moon d. accretion of Earth e. formation of core and mantle

Environmental & Atmospheric Sciences

Which of the following is a lesson that we as historians can learn from the reforms of the Gracchi, and their subsequent significance for the Roman Republic?

A) The political violence against the Gracchi set a dangerous precedent B) The proposed laws showed a growing conflict between the rich and the poor in the Roman state C) The Gracchi got a lot of popular support, which suggested that their proposed reforms would be championed again by later politicians D) All of the above

Environmental & Atmospheric Sciences