Ammonoids, graptolites, and conodonts are excellent guide fossils because of their short stratigraphic ranges
a. True
b. False
True
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When air masses of different densities collide, the less dense air mass is forced to rise through frontal lifting.
Answer the following statement true (T) or false (F)
The crust and the underlying uppermost mantle make up the ____________________
Fill in the blank(s) with correct word
On a cold, windy day, the air feels ________ because the wind ________
A) warmer; mitigates against the cold temperatures B) colder; increases the heat loss from cooling of the air C) warmer; disperses clouds, allowing more sunlight to reach the ground D) colder; increases evaporative heat loss from our skin E) warmer; winds, in general, have a warming effect
The dividing line between the northern and southern agricultural regions of eastern China roughly follows:
A) the Himalayas B) the Qin Mountains and Huai River C) the Yellow Sea and Korean Peninsula D) the Xi River