Geological processes on the Earth's surface are directly related to
A) the reflectivity of its surface
B) the composition of its atmosphere
C) the rate of impacts
D) internal heat
Question 2
Compare two diverging lenses similar except that lens B is rated at 20 Diopters, whereas lens A is rated at 10 Diopters. The focal length of lens B is
A) twice the focal length of lens A.
B) one-fourth of the focal length of lens A.
C) one-half of the focal length of lens A.
D) 1/ of the focal length of lens A.
E) four times the focal length of lens A.