An oil well is usually drilled into

An oil well is usually drilled into a hole in the Earth with a drilling rig.

Explanation:

In summary, a well is created by drilling a hole into the earth with a drilling rig that rotates a drill string with a bit attached. After the hole is drilled to a prescribed depth, sections of steel tubing known as casing are set in the hole (slightly smaller than the borehole) to provide an annuls for cementing. Hope this helps.

answer; i believe that the correct answer is (b) melosis; plz check first.good luck

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.