Ordinary cell thunderstorms only last about one hour and begin to dissipate when ____
A) lightning neutralizes all the electrical charge in the cloud
B) all the precipitation particles in the cloud turn to ice
C) the downdraft spreads throughout the cloud and cuts off the updraft
D) solar heating at the ground begins to decrease
C
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The Wild and Scenic Rivers Act of 1968 ________
A) is an agreement between the United States and Canada to protect rivers that cross the boundary between the two countries B) no longer protects waterways because the act has been repealed to build more hydroelectric dams C) limits dams to no less than 5 miles apart D) permits dams of no more than 10 feet in height to be built along a designated waterway E) completely prevents a designated waterway from being dammed
When fructose adopts a furanose structure which carbon is the anomeric carbon?
A) C-1 B) C-2 C) C-5 D) C-6
What is the zone on a glacier where the amount of ice added is less than what is lost?
A. accumulation zone B. firn C. ablation zone D. kettle E. melting zone
Of the countries in the African region, the countries that lie along the equator in western and central Africa have the mildest climate
Indicate whether the statement is true or false