ENVSCI Midterm Review 2 Pt 1

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What is photosynthesis?

Back

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy, usually from the sun, into chemical energy in the form of glucose, using carbon dioxide and water.

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What is eutrophication?

Back

Eutrophication is the process by which a body of water becomes overly enriched with nutrients, leading to excessive growth of algae and depletion of oxygen, which can harm aquatic life.

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What is a dead zone in an aquatic environment?

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A dead zone is an area in a body of water where oxygen levels are so low that marine life cannot survive, often caused by nutrient pollution and eutrophication.

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What is the enhanced greenhouse effect?

Back

The enhanced greenhouse effect refers to the increase in Earth's average temperature due to higher concentrations of greenhouse gases, primarily from human activities like fossil fuel combustion.

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What are fossil fuels?

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Fossil fuels are natural substances formed from the remains of ancient plants and animals, including coal, oil, and natural gas, and are used as a primary energy source.

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What is deforestation?

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Deforestation is the large-scale removal of trees from forested areas, often resulting in damage to the quality of the land and contributing to climate change.

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What was one significant environmental impact of the Industrial Revolution?

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The Industrial Revolution led to widespread deforestation and pollution due to increased industrial activity and urbanization.

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During which season are CO₂ levels typically the lowest?

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CO₂ levels are typically the lowest during winter due to reduced photosynthesis and lower plant activity.

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What is the role of plants in carbon dioxide levels?

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Plants absorb carbon dioxide during photosynthesis, which helps to lower atmospheric CO₂ levels, especially in spring and summer.

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What is the Gulf of Mexico known for in environmental science?

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The Gulf of Mexico is well-known for its dead zone, which is caused by eutrophication from nutrient runoff, leading to low oxygen levels.