Explain how fractional distillation separates compounds due to different boiling ranges.

Because they have different boiling temperatures, they can be separated easily by a process called fractional distillation. ... There is a temperature difference across the column (hot at the bottom, cool at the top). The vapor rises in the column. As the vapor rises through the trays in the column, it cools.

- decrease the number of plants and animals living in the water.