15 Questions
Which process releases CO2 into the atmosphere?
Combustion
What is the result of the decomposition of soft body after death in molluscs and hard corals?
Dissolution of solid structures
Which process can negatively affect the survival of aquatic organisms?
Changes in pH
What is the primary source of carbon in limestone?
Precipitation in neutral or alkaline conditions
Which process involves the release of organic material through waste?
Egestion
Which of the following is NOT an organic macromolecule that contains carbon?
Carbohydrates
Where is carbon found in the environment?
Atmosphere
What role do autotrophs play in the carbon cycle?
Convert inorganic carbon dioxide into organic carbon compounds
What happens when carbon dioxide from the air dissolves into water?
Carbon dioxide forms carbonic acid and raises the pH of the aquatic environment
Which compound is the most common type of carbon compound released into the atmosphere?
Methane
Which of the following is a common source of methane in the atmosphere?
Combustion during cellular respiration
What is the main component of natural gas?
Methane
What is the process of removing carbon dioxide from the environment and locking it up in a substance for an extended period of time called?
Biosequestration
What is the main component of limestone?
Calcium carbonate
What is the main disadvantage of burning peat as a fossil fuel?
It disrupts sensitive wetland environments
Test your knowledge of the carbon cycle and where carbon is found in different environments on Earth. Explore how carbon is the backbone of organic macromolecules and its presence in the hydrosphere, biosphere, geosphere, and atmosphere.
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