Starter quiz
- Order the statements to describe how carbon dioxide becomes 'locked up' in sedimentary rocks.
- 1⇔carbon dioxide in the atmosphere dissolves in the oceans
- 2⇔carbon dioxide in the oceans reacts to form carbonate compounds
- 3⇔carbonate compounds are used in animal shells and bones
- 4⇔when the animals die the shells and bones settle at the bottom of the ocean
- 5⇔over millions of years sedimentary rocks form from these sediments
+