Which statement best describes comparative and descriptive investigations?
They both include a question, procedure and conclusion
They both include a hypothesis.
They both require a specified control group
They both use independent and dependent variables

PLEASE HURRY

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull