11 mark
Which of the following is NOT a natural source of carbon dioxide in the atmosphere?
Volcanic eruptions
Combustion of fossil fuels
Cellular respiration
Decomposition of organic matter
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Atmospheric Carbon Dioxide & Particulates (College Board AP® Environmental Science): Exam Questions
6 mins6 questions
21 mark
Which of the following describes a natural process that releases particulate matter into the atmosphere?
Combustion of fossil fuels in power plants
Emissions from industrial manufacturing processes
Wind-driven dust from arid regions
Exhaust from motor vehicles
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31 mark
Which of the following processes explains how decomposition releases carbon dioxide into the atmosphere?
Photosynthesis by plants converting carbon dioxide into organic matter.
Bacteria break down organic matter, releasing carbon dioxide through respiration.
Absorption of carbon dioxide by oceans during the carbon cycle.
Formation of fossil fuels from ancient organic materials.
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41 mark
Which of the following is a natural source of particulate matter (PM) in the atmosphere?
Vehicle exhaust emissions
El Nino
Volcanic eruptions
Burning fossil fuels
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51 mark
The concentration of particulate matter (PM₂.₅) in the U.S. was 80 µg/m³ in 1960. By 2020, the concentration had decreased to 12 µg/m³.
What is the percent change in particulate matter concentration over this period?
60% decrease
68% decrease
72% decrease
85% decrease
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61 mark
The concentration of particulate matter (PM₂.₅) in the U.S. was 80 µg/m³ in 1960. By 2020, the concentration had decreased to 12 µg/m³.
Which of the following is most responsible for this trend in particulate matter concentration?
National Environmental Policy Act (NEPA)
Comprehensive Environmental Response, Compensation and Liability Act (CERCLA)
Clean Air Act (CAA)
Endangered Species Act (ESA)
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