Science 1. Suppose you were stranded on a desert island without a calendar or clock. How would you know when a day, a month, or a year had passed?
2. How could you tell what time of year it was?

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.

i'm pretty sure it is letter c.) car