The first large forests formed in the Carboniferous period. The decrease in CO 2 levels by all of these plants caused __________.

a lack of CO 2 for photosynthesis

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1. Introduction to Biology2h 42m
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3. Water1h 26m
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28. Plants

Seedless Vascular Plants

General Biology

28. Plants

Seedless Vascular Plants

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Multiple Choice

The first large forests formed in the Carboniferous period. The decrease in CO₂ levels by all of these plants caused __________.

global warming

a lack of CO₂ for photosynthesis

the formation of fewer stomata in plant leaves

seed plants to become the dominant types of plants on Earth

global cooling

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Verified step by step guidance

Understand the context: The Carboniferous period is known for the extensive formation of forests, which significantly impacted the Earth's atmosphere.

Recognize the role of plants in the Carboniferous period: Plants absorb carbon dioxide (CO2) during photosynthesis, which can lead to a decrease in atmospheric CO2 levels.

Consider the effects of decreased CO2 levels: Lower CO2 levels can influence global temperatures, as CO2 is a greenhouse gas that traps heat in the atmosphere.

Identify the relationship between CO2 levels and climate: A decrease in greenhouse gases like CO2 can lead to global cooling, as less heat is retained in the atmosphere.

Conclude the impact: The extensive growth of forests during the Carboniferous period led to a significant reduction in CO2 levels, contributing to global cooling.