10 Questions
Why were thick coal deposits not found in coastal deposits and deltas that formed during earlier times?
The plants that produced enough biomass to form large peat deposits had not yet evolved.
What led to the decrease in carbon dioxide (CO2) concentrations during the Carboniferous period?
The growth of continental glaciers caused by global cooling
What has contributed to the reversal of the carbon dioxide removal process in recent times?
The exploitation of large reserves of coalbed methane
What is the purpose of using a well in a coal seam?
To capture methane gas from the coal seam
Which of the following is an example of renewable energy mentioned in the text?
Wind
What type of materials are burned to generate energy in biomass plants?
Organic materials like wood and agricultural waste
Why is methane vented during coal mining?
To prevent the build-up of methane which can cause explosions in mine shafts
What determines whether methane within the coal fractures may be trapped in the coal?
The level of water pressure in the coal seam aquifer
How is coalbed methane extracted?
By removing water from the coal using a well
What caused the decline in production rates for coalbed methane in recent years?
Increase in shale gas methane production
This quiz explores the evolution of plants in coastal swamp forests during the Silurian and Devonian periods, and why thick coal deposits are not found in earlier coastal deposits and deltas. It discusses the rapid diversification and evolution of plants during the Devonian period.
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