7. The picture shows smooth, continuous lines eroded along
the ground. This was the
result of:
A. Glaciers
B. Rain
C. Wind
D. Volcanic activity

heat or electricity in the atmosphere- c.

hloride, what is the mass of calcium in

explanation:

i'm assuming that the correct answer is indeed the first one/ "a"..

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.