Question

question 1 of 24 select the correct answer. which step occurred first in the creation of oil? diatoms died and fell to the bottom of the sea. intense heat and pressure changed carbon into oil. the earth shifted and changed, causing oil pockets to develop. sumerians and egyptians used oil for medicinal purposes. edwin l. drake struck oil in titusville, pennsylvania.

Explanation:

Oil is formed from the remains of marine - organisms like diatoms. First, diatoms die and sink to the sea - bottom. Then, through heat and pressure, the organic matter is transformed into oil. The other options are either about historical uses of oil or geological changes related to oil pockets, which occur later in the overall process.

Answer:

Diatoms died and fell to the bottom of the sea.