Question

Oil formed because:________

A. Leaves, twigs, and tree trunks decomposed under conditions of heat, pressure, and low oxygen.
B. Tiny algae and plankton decomposed under conditions of heat, pressure, and low oxygen.
C. The decomposition of organic material remained aerobic (lots of oxygen) for a long time.
D. Large sauropod-type dinosaurs decayed in swamps.
E. The temperature reached a minimum of 1,000°C.

Answer 1

C. The decomposition of organic material

Answer 2

B. Tiny algae and plankton decomposed under conditions of heat, pressure, and low oxygen.

Step-by-step explanation:

oil is formed because of fossils fuel which are formed from decomposition of large amount of small animals and plants and increase pressure and temperature.