True, because if it wasn't a chemical reaction it would have proceeded to stay the same. but it begins to bubble.
sorry if this isn't the best answer I'm trying my best.
C.) both secrete toxins and have thorns (It simply depends on what kind of plant it is)
B.
Spring tides occur during a new/full moon. The sun, moon and earth form a straight line during these phases.
The answer is:
:Avoid lying down after eating
That should help