Grade 12 Carbon Cycle Worksheet
A comprehensive worksheet for Grade 12 students to assess their understanding of the carbon cycle, including its processes, reservoirs, and human impacts.
Includes
Standards
Topics
Carbon Cycle Assessment
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Show all your work for calculations where applicable.
1. Which of the following is the largest reservoir of carbon on Earth?
Atmosphere
Oceans
Fossil fuels
Sedimentary rocks
2. The process by which plants convert atmospheric carbon dioxide into organic compounds is called:
Respiration
Combustion
Photosynthesis
Decomposition
3. The long-term storage of carbon in geological formations is known as carbon .
4. When organisms die, decomposers break down organic matter, returning carbon to the and .
5. Human activities such as and have significantly altered the natural carbon cycle.
6. Briefly explain the role of the ocean in regulating atmospheric carbon dioxide levels.
7. Analyze the diagram of the carbon cycle below and answer the questions that follow.
a. Identify two processes that release carbon dioxide into the atmosphere.
b. Identify two carbon reservoirs shown in the diagram.
8. Deforestation contributes to an increase in atmospheric carbon dioxide.
True
False
9. Carbon is only found in the atmosphere.
True
False
10. Discuss the major impacts of human activities on the global carbon cycle and their consequences for Earth's climate. Provide at least three specific examples.