8. a. Outline the role of decomposers in the carbon cycle. b. Name two important decomposers.
9. Copy and complete the following sentences using the words below:
burning respiration source sink photosynthesis Carbon dioxide is released into the atmosphere during the ____________ of fossil fuels. Increased carbon dioxide in the atmosphere is responsible for global warming.
Anything that takes carbon out of the atmosphere is a carbon ____________. During ____________, plants take carbon out of the atmosphere in the form of carbon dioxide.
Anything that releases carbon into the atmosphere is known as a carbon ____________. All organisms release carbon into the atmosphere in the form of carbon dioxide during the process of ____________.
Past paper questions
1. Final Examination 2019, Question 3 The diagram below illustrates the water cycle. Some of the key stages of the water cycle are labelled 1, 2, 3 and 4.