Planetary scientists have successfully explored Mars using
A. landed rovers.
B. orbiting spacecraft.
C. sophisticated cameras.
D. All of these choices are correct.
Answer: D
Environmental & Atmospheric Sciences
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The cynodonts were the direct ancestors of early mammals
a. True b. False
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The ozonosphere is critical to life because it
A) affects temperatures. B) absorbs visible light wavelengths. C) absorbs most ultraviolet wavelengths. D) produces the auroras.
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For a given latitude, if the stated time of sunrise is 6:10 a.m. at 120°00' W, what is the time of sunrise at 117°30' W?
What will be an ideal response?
Environmental & Atmospheric Sciences
Which technological innovation was used by Prince Henry the Navigator's explorers to aid in discovering
new trade routes? a. Sextant b. Batten sails c. Compass d. Chronometer e. Traverse boards
Environmental & Atmospheric Sciences