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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Central Nervous System

The part of the nervous system consisting of the brain and spinal cord, responsible for processing information and coordinating bodily functions.

Huntington's Disease

A genetic disorder that causes the progressive breakdown of nerve cells in the brain, leading to physical, cognitive, and psychiatric symptoms.

Base Pairs

The pairs of nucleotides (adenine with thymine, and cytosine with guanine) that make up the DNA ladder structure, fundamental for DNA replication and transcription.

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Impairments in intellectual functions such as thinking, reasoning, memory, learning, or problem-solving.