What benefit do offshore oil rigs have on the environment?

The correct answer is that the oil withdrawn from the oil rigs can be used to power large structures like ships.

Explanation:

The oil rigs are the efficient, positive, and direct modes of obtaining crude oil. It is a big composition or structure in or on the water body with the assistance of drilling wells, to process and to extract natural gas and oil, and to store the components on a temporary basis, unless and until they can be brought to shore for clearing and retailing. The crude oil obtaining from the rigs are used to fuel large structures like ships.

i believe you meant to say air rather than hair so the answer is below ")

the dead sea, the lowest place on earth at 430 metres (1,410 ft) below sea level, has a correspondingly high typical atmospheric pressure of 1065 hpa.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.