A group of small, lizard-like reptiles among which are the earliest known reptiles:a
lobe-finned fish d. phytoplankton
b. placoderms e. protorothyrids
c. labyrinthodonts
E
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Cloud cover moderates the daily temperature range by reflecting incoming solar radiation during the day and absorbing longwave radiation from Earth at night.
A) true B) false
Judge the following sentence according to the criteria given below: Economically exploitable deposits
of aluminum are restricted to a few highly localized geological sites BECAUSE bauxite only forms when volcanic activity vents fluids to the surface as black smokers. a. The assertion and the reason are both correct, and the reason is valid. b. The assertion and the reason are both correct, but the reason is invalid. c. The assertion is correct, but the reason is incorrect. d. The assertion is incorrect, but the reason is correct. e. Both the assertion and the reason are incorrec
Brain drain occurs when bright young people migrate to foreign lands in search of better jobs
Indicate whether the statement is true or false
0° of latitude is found at the ________ and the 90° of latitude is found at the ________.
A. Equator; North Pole B. North Pole; Prime Meridian C. South Pole; Equator D. South Pole; North Pole