Francium is the heaviest of the alkali metals, with an atomic mass of 223 grams.
The answer would be C) it is always the same as it was before the collision
Answer:
21.8
Explanation:
add both because there both forces are going down
If countries are on plate boundaries, such as Japan, they are more prone to earthquakes. If countries are above hot spots, such as Hawaii, they are more prone to volcanoes.
