The Classification of Coal Is Based on the Concentration of Carbon

question 2

Multiple Choice

The classification of coal is based on the concentration of carbon in the rock.Which of the following chain of processes causes the concentration of carbon to increase?

• A)burial à decay of plant matter à release of organic molecules à concentration of carbon
• B)burial à chemical reactions à release of gases à concentration of carbon
• C)decay of plant matter à burial à release of gases à concentration of carbon
• D)chemical reactions à burial à release of gases à concentration of carbon

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Definitions:

Product Life Cycle

The sequence of stages that a product moves through, starting from its introduction, advancing to growth, reaching maturity, and finally declining in the market.

Growth Stage

A phase in the product life cycle characterized by rapid market expansion, increased sales, and the successful establishment of a product in the market.

Sales Increases

A rise in the volume or value of products or services sold, reflecting positive growth for a business.

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Energy-efficient lighting options that use light-emitting diodes to produce light, known for their longevity and lower energy consumption compared to traditional bulbs.