Which element forms the basis of all organic compounds nitrogen carbon oxygen hydrogen

If a bottle of olive oil contains 1.4 kg of olive oil, what is the volume, in milliliters ( ml ), of the olive oil?

There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins