Fossil fuel formation：練習題

Which type of organic matter is the primary source for the formation of coal over millions of years?

Which set of environmental conditions is necessary for the conversion of marine organic matter into oil and natural gas?

Which sequence of events best describes the geological formation of oil and natural gas?

The diagram of a geological oil trap shows oil held within a layer of sandstone, beneath a layer of shale. Which property of the shale allows it to act as a cap rock?

Describe the sequence of events and environmental conditions necessary for the formation of coal from plant remains.

Contrast the environmental conditions and types of organic matter required for the formation of coal compared to those required for crude oil.

Evaluate why natural gas is often found trapped beneath a layer of impermeable cap rock above crude oil deposits in a sedimentary basin.

Coal is a major fossil fuel used for electricity generation worldwide.
(a) Outline the role of pressure and heat in the formation of coal from ancient plant matter.
(b) State one reason why coal is considered a non-renewable energy resource.

Crude oil and natural gas are vital non-renewable energy resources.
(a) Describe the specific environmental conditions and the type of organic matter required for the formation of crude oil over millions of years.
(b) Explain the role of cap rocks and reservoir rocks in the accumulation of oil and gas deposits within the Earth's crust.