The broad waves of related waves is called: : Radiation Spectrum Force Energy please help​

When should a bar graph be used? a. when there is no independent variable. b. when the independent variable is continuous and does not show a relationship to the dependent variable. c. when the independent variable is continuous and shows a causal link to the dependent variable. d. when the independent variable is composed of categories and does not show a relationship.

The body of water found at number 4 on the map above is the

Me with biology endocrine system crossword also image left i need with hw