Oil platforms may be built in the middle of the ocean. How does an oil platform work? O It drills the seabed and pumps the oil to the surface.
O It removes the oil on the surface during oil spills.
o It covers fissures to avoid oil leak from the ocean floor.
O It recycles the oil that is collected from different sources.

A

Explanation:

There is a specific tool called an oil drill that drills into the ground and then a pipe sucks the oil up onto a vessle

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l