What is the primary component of trees and other living organisms on Earth?

• Oxygen

• Nitrogen

• Carbon

• Hydrogen

What is the primary component of trees and other living organisms on Earth?

• Oxygen

• Nitrogen

• Carbon

• Hydrogen

What is the name of the geological time period during which the vast majority of the world's coal was formed?

• Jurassic

• Triassic

• Carboniferous

• Permian

What was a key characteristic of the environment during the Carboniferous period that contributed to coal formation?

• Dry deserts

• Cold ice ages

• Tropical swamp forests

• Volcanic eruptions

What is the name of the geological time period during which the vast majority of the world's coal was formed?

• Jurassic

• Triassic

• Carboniferous

• Permian

What was a key characteristic of the environment during the Carboniferous period that contributed to coal formation?

• Dry deserts

• Cold ice ages

• Tropical swamp forests

• Volcanic eruptions

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What were the primary factors that contributed to the massive accumulation of plant matter leading to coal formation during the Carboniferous period?

• Extreme cold and dry conditions

• Rapid evolution of decomposers

• Lack of oxygen in waterlogged swamps and geological activity creating basins

• Abundance of lignin in all plants

How is coal formed?

• From volcanic ash over thousands of years.

• From decomposing carbon compressed over millions of years.

• From ancient marine organisms in a short period.

• From solidified lava flows.

What is a significant environmental consequence of burning coal?

• It increases the amount of oxygen in the atmosphere.

• It contributes to a warming climate by adding carbon to the atmosphere.

• It helps in the formation of new carbon sinks.

• It purifies drinking water.