Forests and Carbon Absorption

According to the USDA report, what could happen to U.S. forests by 2070?

• They could emit up to 100 million metric tons of carbon a year

• They could absorb up to 100 million metric tons of carbon a year

• They could have no impact on carbon emissions

• They could become a major carbon sink

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What percentage of U.S. carbon emissions do forests currently absorb?

• 5%

• 1%

• 15%

• 11%

What is one of the factors contributing to the loss of carbon absorption in forests?

• Planting of younger trees

• Development in forested areas

• Decreased frequency of natural disasters

• Increased forest management

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Why do older, mature trees absorb less carbon than younger trees?

• They have a smaller surface area

• They have fewer leaves for photosynthesis

• They have higher water requirements

• They have slower metabolic rates

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What is the recommended solution to maintain carbon absorption in forests?

• Implementing aggressive forest management

• Planting more trees in urban areas

• Cutting down all older trees

• Leaving forests untouched

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What is the main focus of the USDA report?

• Assessing renewable resources in farmlands

• Studying the relationship between forests and carbon emissions

• Predicting the impact of climate change on forests

• Analyzing the effects of wildfires on carbon absorption

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What is the projected trend for forests' ability to absorb carbon after 2025?

• It will continue to increase

• It will remain constant

• It will start to decline

• It will fluctuate unpredictably

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What is the role of natural disasters in the loss of carbon absorption in forests?

• They cause fluctuations in carbon absorption

• They have no impact on carbon absorption

• They decrease carbon absorption

• They increase carbon absorption

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What is the potential consequence of U.S. forests becoming a substantial carbon source?

• No impact on global climate

• Decreased global warming

• Increased global warming

• Stabilization of global temperatures

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What is the purpose of the decennial report mandated by Congress?

• To analyze the effects of wildfires on grasslands

• To assess renewable resources in wetlands

• To predict the size of undeveloped landscapes

• To study climate impacts on forests