Question

Petroleum was formed from organisms:

• A. living on the land
• B. living on the plants
• C. living in the sea
• D. living on the rocks

Answer 1

The correct option is C living in the sea

Petroleum is formed from the organisms living in the sea. As these organisms die, their bodies are settled at the bottom of the sea and will get covered with layers of sand and clay. Over millions of years, the absence of air, high temperature and high pressure will transform the dead organisms into petroleum. ​

​Hence, option C is correct.