What is the difference between a point
(gene) mutation and chromosomal mutation
and possible side effects of each type of
mutation?

A gene mutation is a permanent alteration in the DNA sequence that makes up a gene, such that the sequence differs from what is found in most people. Mutations range in size; they can affect anywhere from a single DNA building block (base pair) to a large segment of a chromosome that includes multiple genes.

He should put sand around the spill in order to contain it so that it won't spread