How was crude oil formed

Explanation:

Crude oil is formed from the remains of dead organisms (diatoms) such as algae and zooplankton that existed millions of years ago in a marine environment. As they lived these organisms absorbed energy from the sun and stored it as carbon molecules within their bodies.

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa

i think is conclusions.i think so