Could you please read the text twice - one with your slow speed, and the other with your normal one?
What you see below you is crude oil. Crude oil is the source of all petroleum products: gasoline, fuel oil, jet fuel, asphalt, lubricants, and chemicals. The modern world cannot exist without the energy derived from petroleum products, for industrial operation as well as transportation. These products are burned to produce energy or used as lubricants to reduce friction.
Many years ago, crude oil could be found close to the surface, and it would ooze from the ground without a recovery operation. That supply was very limited. Today oil wells must be drilled to depths of hundreds and even thousands of feet. Generally, crude oil must be pumped to the surface.
Crude oils are classified into two types determined by the percentage of sulfur they contain. “Sweet” crude oil has less than one percent sulfur, while “sour” crude has greater than one percent sulfur content. Crude oil is a mixture of many complex organic compounds. Though the chemical elements involved are mostly carbon and hydrogen, with traces of sulfur, nitrogen, and oxygen, the complicated structures of these organic chemicals create a multiple of different compounds.
What an awesome voice indeed! Thank you very much!