What maintains the motion of a satellite in circular orbit?
A. Nothing.
B. The gravitational constant G.
C. Components of gravitational force.
D. all of the above
Answer: A
Environmental & Atmospheric Sciences
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Which of the four sedimentary layers in this figure is the oldest?
A) The layer on top
B) The layers in the middle
C) The layer on bottom
D) There is not enough information to tell.
Environmental & Atmospheric Sciences
Which of the following is NOT a climatic element?
a. solar energy b. altitude c. precipitation d. wind
Environmental & Atmospheric Sciences
_________________ vegetation is hard-leafed and drought resistant
Fill in the blank(s) with correct word
Environmental & Atmospheric Sciences
The wind shear associated with several major airline crashes is believed to have been caused by?
a. ?microbursts. b. ?dry lines. c. ?the jet stream. d. ?mesocyclones. e. ?the jet streak.
Environmental & Atmospheric Sciences