Lifelong Learning Programme

This project has been funded with support from the European Commission.
This material reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein

Valid XHTML 1.1 Valid CSS!

Chemistry is all around us
Copyright 2015
This project has been funded with
support from the European Commission

Educational Packages

Chemistry in Everyday life

Carbon cycle

Step 1 - Exercises

A schematic representation of the carbon cycle is presented below. Let’s answer the questions after studying the figure.
Which of the below correctly indicates the source of the carbon dioxide in air?

  • plants performing photosynthesis
  • burning of the fossil fuels
  • planting trees
  • producers