You are presented with the question "oil is formed by burial of decomposing algae being pushed down which increases what" and the following answer choices: 
- volcanic activity
 - Greenhouse gases
 - ocean acidity
 - kinetic energy
 - sea currents
 - Pollution
 - nutrients
 - temperatures

Now knowing that oil is formed by layers of sediment pushing down on decomposing algae and burial of sediments also causes the sediments to increase in temperature, choose the best answer.


 

        temperatures 