Which of the following is TRUE?
a) The average surface temperature of Venus is about 30 degrees Fahrenheit.
b) Mercury has a very thick atmosphere made mostly of carbon dioxide.
c) The runaway greenhouse effect causes the present temperatures on Mars to exceed thoseon Earth.
d) Mercury rotates exactly one and a half times for every one revolution around the Sun.
e) Venus has no volcanos on its surface.
Ans: d) Mercury rotates exactly one and a half times for every one revolution around the Sun.
You might also like to view...
What is the wavelength of light that has a frequency of 3 MHz?
a. 9 × 10^14 Hz b. 1 × 10^14 m c. 9 × 10^14 m d. 100 m e. 0.01 m
The pressure at the bottom of aquarium A is greater than that at the bottom of aquarium B. Why might this be?
a. A is filled with fresh water, B has the same amount of salt water. b. A is filled to a greater depth than B. c. A has greater volume than B. d. The bottom of aquarium A has smaller area than that of B. e. none of the above
A simple ac circuit consists of an inductor connected across the terminals of an ac power source. If the frequency of the ac source is decreased by a factor of four, what happens to the reactance of the inductor?
A) It increases by a factor of eight. B) It decreases by a factor of four. C) It increases by a factor of four. D) It increases by a factor of two. E) It decreases by a factor of eight.
That Earth ___________, evidence that Earth differentiated
a. rotates slowly b. has an average density that is higher than the density of the crust c. has a no magnetic field d. has a surface that is 75% water e. all of these