Judge the following sentence according to the criteria given below. The barren surface of the tidal flat exposed at low tide lacks vegetation because tidal flats form on the lagoon side of a barrier island
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 incorrect.
Answer: B
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The Sun radiates at an effective temperature of 5780 K and has a radius of about 696,000 km. Remembering that 1 AU = 149,600,000 km, derive the approximate value of the solar flux at Earth's orbit. Compare your answer with the value given in the text
What will be an ideal response?
Which of the following statements about increasing ocean temperatures as a result of global warming is correct?
A) Deep ocean waters are not yet showing signs of increased temperature. B) Deeper ocean waters are warming faster than expected. C) Ocean warming has not been documented below a depth of 0.5 kilometers. D) The warming of surface waters is uniform throughout the ocean. E) There has been an overall decrease in ocean surface temperature.
The northwestern islands of Kauai and Niihau are the ________ of the islands, in comparison to the Big Island in the southeast, which is still located above the geologic ________
Fill in the blank(s) with correct word
Sally throws a golf ball at a massive bowling ball at rest. The golf ball bounces backward from it. Compared to the golf ball, after the bounce the bowling ball has
A. greater kinetic energy, but less momentum. B. less momentum and less kinetic energy. C. greater momentum and more kinetic energy. D. greater momentum, but less kinetic energy.