What were the names of the two smaller super continents that formed when Pangaea broke apart?
a) Laurasia and Pangaea Minor
b) Laurasia and Gondwanaland
c) Pangaea Major and Pangaea Minor
d) Pangaea Major and Gondwanaland
e) Pangaea Major and Laurasia
b) Laurasia and Gondwanaland
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Human activities can greatly accelerate the rate at which nutrients and organic substances enter aquatic ecosystems from their surrounding watersheds in a process called ______________ _______________
Fill in the blanks with correct word
The best defining feature of an arid region is a place where
A) precipitation is less than the amount of water that could have been evaporated or transpired. B) streams carry little or no water. C) vegetation is sparse. D) here is no influence of the intertropical convergence zone.
When centric diatoms reproduce by simple cell division, the two new daughter cells are ________.
A. both smaller than the parent cell B. both larger than the parent cell C. both the same size as the parent cell D. of unequal size E. None of these is correct; centric diatoms do not reproduce in this way.
What is the Greenhouse Effect?
a) warming caused by the hole in the ozone layer b) a buildup of oxygen in the atmosphere c) solar radiation reflected back to space d) solar radiation not reflected back to space causing the Earth's surface temperature and lower atmosphere to warm by heat trapping gases e) all of the above