Which description is not a property of an acid? ph lower than 7 turns litmus paper blue sour taste corrosive

What metric units would you use to measure the thickness of a key

The footprints of a dinosaur and the burrow of an ancient shrimp are examples of which kind of fossils

Pls i will do pls imma diewhat forms white light? (4 points)a. combination of all wavelengths of ultraviolet light b. combination of all wavelengths of visible lightc. absorption of electromagnetic waves d. absorption of infrared rays