Oil and gas form due to

A. heating of rocks to metamorphic temperatures (at least 400°C).
B. heating and breakdown of long hydrocarbon chains into smaller molecules.
C. oxidation of organic material at the surface.
D. accumulation of inorganic material, such as clay particles in shale.


Answer: B

Environmental & Atmospheric Sciences

You might also like to view...

Many LDCs took out large loans in the 1970s and 1980s because they expected their economies to improve in the coming years

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Forests are found only under conditions where:

a. annual moisture balance is positive. b. summer precipitation is convectional. c. both of these d. none of these

Environmental & Atmospheric Sciences

Speleothems are associated with the ________ stage of cavern formation

A) initial excavation B) dead C) decoration D) solution E) room

Environmental & Atmospheric Sciences

According to the figure below, from which of the following directions do the prevailing winds blow?  

A. north B. east C. west D. south

Environmental & Atmospheric Sciences