The cure for polio is a(n) . basic applied

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.

The same side of the moon always faces earth because the

In which phase of mitosis do the spindle fibers pull the chromosomes apart to opposite sides of the cell ?