15 1 Point (Q004) The oil window is the depth in the Earth at which oil forms, roughly 40 to 50 km. holes in the drill bit through which oil enters. relatively narrow range of temperatures in which oil can form: 90C to 105C. late Cenozoic, when all current oil was formed; any older oil has already decomposed. Question 16 1 Point ________ is harnessed from the potential energy of water. Hydroelectric power Solar energy Biofuel Hydrologic energy Question 17 1 Point Most extensive deposits of coal were deposited in the Carboniferous. True False Question 18 1 Point Conventional oil and gas reserves are those from which oil and gas can be pumped relatively easily. in which the source rock is also the reservoir rock. that can be drilled into on land. that occur in belts or zones in the subsurface. Question 19 1 Point (Q003) Oil forms when leaves, twigs, and tree trunks are buried and subjected to heat, pressure, and low oxygen. the decomposition of organic material takes place in an aerobic (oxygen-rich) environment. dead algae and plankton deposited in low-oxygen conditions are buried and heated. large sauropod-type dinosaurs decay in swamps