WorksheetsCarbon cycle
Total questions: 7
Worksheet time: 3mins
1. What happen to the ocean if there is excess of carbon dioxide in the atmosphere ?
A. Lowers carbonate saturation level
B. Decreased the pH levels of Earth's oceans
C. Change colors of the ocean
D. Affect the oxygen level in the ocean
2. Which of the following processes is responsible for absorbing carbon in the carbon cycle?
A) Respiration
B) Decomposition
C) Combustions
D) Photosynthesis
3. (a) is the main contributor for the carbon in our atmosphere
4. The role of bacteria in the carbon cycle is
A) Breakdown of organic compounds
B) Chemosynthesis
C) Photosynthesis
D) Assimilation of nitrogen compound
5.What process occurs when coal (fossil fuel) is used for energy?
6. Carbon can be found in...
7.Organisms that do not decompose can be buried and become ______ ____.
(a)
