The funnel cloud characteristic of a tornado is principally formed by:
a. condensation of water vapor in air drawn into the low pressure core of the tornado.
b. dust and dirt picked up from the atmosphere.
c. clouds being funneled by downward air currents coming out of a cumulonimbus cloud.
d. water drawn up from the sea surface into the cloud.
e. gaseous products from intense lightning activity within the tornado.
a
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In terms of pedogenic regimes, the process that results in an accumulation of humus overlaying a thick, water saturated layer of clay in cold, wet climates with poor drainage conditions is
A) laterization B) salinization. C) calcification. D) podzolization. E) gleization.
Earthworms ________
A) are plentiful underneath arid land surfaces B) excrete casts C) are also known as bacteria D) usually deplete soil fertility E) have more species than insects
Glacial striations, roche moutonées, and drumlins allow scientists to identify the direction of glacial movement
Indicate whether the statement is true or false
Braided streams flow in a network of interconnected rivulets around numerous bars.
Answer the following statement true (T) or false (F)