PLZ HURRY IM BEING TIMED Find the charge in Coulomb of an object with 21 protons and 15 electrons. You may include your work in the answer.
2 points

“other instruments such as gravimeters and magnetometers are also used in the search for petroleum. extracting crude oil normally starts with drilling wells into an underground reservoir. when an oil well has been tapped, a geologist (known on the rig as the "mudlogger") will note its presence. “ this is what i found on google i hope it

Ithink the answer is a

Answer is trees if this doesnt try using google