The process where surface waters are pushed away from the land and replaced by nutrient-rich bottom waters is called
A) downwelling.
B) upwelling.
C) land breeze.
D) sea breeze.
Answer: B
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In order for an atom to decay to an element that is one greater in atomic number, it can emit
A) one alpha particle and 3 beta particles. B) one positron and 2 beta particles. C) one beta particle. D) all of the above E) none of the above
The dusty ring around Jupiter was discovered in 1979 by ________
Fill in the blank(s) with correct word
A flat circular coil has 200 identical loops of very thin wire. Each loop has an area of 0.12 m2 and carries 0.50 A of current. This coil is placed in a magnetic field of 0.050 T oriented at 30° to the plane of the loop
What is the magnitude of the magnetic torque on the coil? A) 0.25 N ? m B) 0.52 N ? m C) 2.5 N ? m D) 5.2 N ? m
A star's parallax can reveal its distance. Stars with larger parallaxes are ________.
A. closer B. the same distance as other stars C. farther away D. This is a trick question. Parallax cannot be measured for stars!