What Is Thought to Be the Correct Sequence of the Following

question 61

Multiple Choice

What is thought to be the correct sequence of the following events during the Carboniferous period?
1) vascular plants become more prevalent
2) megaphylls with large surface areas become more prevalent
3) atmospheric CO₂ levels decline by a factor of five
4) global cooling occurs, leading to widespread glaciations

• A) 1, 2 ,3, 4
• B) 2, 1, 3, 4
• C) 2, 1, 4, 3
• D) 1, 2, 4, 3
• E) 3, 4, 1, 2

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Definitions:

Cultural Eutrophication

The process by which a water body becomes overly enriched with minerals and nutrients (mainly from runoff) leading to an explosion in algae growth, which can deplete oxygen levels in water bodies.

Advanced Waste

Waste products that have undergone sophisticated treatment or processing, often to reduce toxicity or enhance disposability.

Sewage Discharge

The release of wastewater from domestic, commercial, or industrial sources into the environment, often requiring treatment to remove contaminants.

Point-Source Pollution

Pollution that originates from a single, identifiable source, such as a pipe, ditch, or factory smokestack.