Simple ish explaination: the raindrops falling from a height at a fast speed whilst it is fairly cold will cause some rain to harden and freeze, becoming hail, and hail can differ in size
It's either genus or species. I'd go with Genus
Answer: D. Scientists can come to different conclusions based on the same data.
Acquired because you don't inherit a "cut off" finger. You do it yourself.....if your clumsy enough