What is thought to be the reason that there are no small impact craters on Mars?

A) Like Venus, Mars' atmosphere is too thick and these meteorites do not survive to make impacts on the surface.
B) The surface of Mars is too young to have impact craters.
C) Due to the gravitational pull of Mars' moons, most small meteoroids are deflected and never make it to the surface.
D) The wind blows small dust particles, eroding the surface of Mars, erasing small impact craters faster than they can form.
E) None of the above. Mars has lots of small impact craters.


D

Physics & Space Science

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A student has written the equation below to convert a temperature in degrees Fahrenheit into Kelvins. What is wrong with this equation? ?     ?

A.

The factor in front of T(ºF) should be .

B.
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C.
An additional 273.15 Kelvins must be added to the right side of the equation.

D.
All the corrections above are required.

E.
Only corrections (b) and (c) are required.

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Physics & Space Science