Lung damage developed from years of cigarette smoking is an example of a(n) ____________________ toxic effect.
Fill in the blank(s) with the appropriate word(s).
chronic
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A current along the shoreline slows as it clears a headland and approaches a bay. The slower current is unable to carry
as much sediment, so sand and gravel are deposited as a(n) ____________ ____________ in a line downcurrent of the headland. These features often have a distinctive curl at the tip. Fill in the blank(s) with the appropriate word(s).
Shield volcanoes are composed largely of lavas of ____________________ composition, they
commonly have slopes that are ____________________, and their eruptions tend to be ____________________ in explosivity. Fill in the blank(s) with the appropriate word(s).
Some anticyclones move into the midlatitudes from northern Canada in what are called _______________ of frigid continental polar air. (two words)
Fill in the blank(s) with correct word
What was the Cambrian explosion?
A. a time when many different types of creatures appeared on Earth B. a time when a meteorite collided with the center of a supercontinent, melting all the glaciers C. a meteorite impact that struck the north coast of the Yucatan Peninsula of Mexico D. a large volcano that went off in Wales, which the Romans called Cambria