The region of a sound wave where the molecules are spread out is represents where the medium becomes more dense or less dense ?

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

Which tool is least in predicting weather

What makes up a film badge? layers of photographic film covered in black paper. an electrolyte paste spread across a plastic sheet. a thin film of salts and other chemicals on clear acetate. a panel of photographic film exposed to the air. ✓