All minerals on the mohs hardness scale are hard enough to scratch a piece of glass is it true or false PLEASE I NEED HELP
science

All of the following are part of the biosphere except

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory

Why do the strengths of london (dispersion) forces generally increase with increasing molecular size? choose one: a. heavier atoms have stronger attractions for each other than lighter atoms. b. dispersion forces are all equal in magnitude; there is no size dependence. c. dispersion forces arise from the attraction between the nuclei of atoms, and larger molecules have larger nuclei. d. dispersion forces arise from dipoles caused by the electron distribution being distorted. larger molecules have more electrons and, therefore, more distortions and a bigger force. e. dispersion forces depend on distance. larger molecules are farther apart and so the forces are smaller.