How does ice float on water?

Between what two countries did the Treaty of Tordesillas exist? Spain and England Portugal and England Spain and Portugal England and France

Why is magnesium the limiting reactant in this experiment

Which statement is true about crossing over of genes? Crossing over does not occur between genes that are far apart from each other on a chromosome. Frequency of crossing over is related to the distance between linked genes.

Find the result when 5m + 2 is subtracted from 9m

To found something means what?