B. Solar activity
C. Earth's tilt
D. Volcanic activity
B) motor oil runoff.
Eliminate
C) ozone depletion.
D) fertilizer runoff.
The answer is C. ozone depletion
Answer: The answer is not 8-12 hours
Explanation:
That 8-12 hours is for Liver Mortis.
B. Robinson
C. gnomonic
D. topographic
2) What receives radio waves from space objects such as quasars?
A. GPS equipment
B. Landsat satellites
C. VLBI equipment
D. navigation satellites