Author: Alex Black
4.1 Species, communities and ecosystems
Ecology
Food webs
Exercises
4.2 Energy flow
Flow of energy in food webs.
4.3 Carbon cycling
The carbon cycle
Photosynthesis
Methane
Coal, oil and gas
Limestone fossilation
4.4 Climate change
The greenhouse effect
Global carbon dioxide
The enhanced greenhouse effect
Coral reefs and acidification
Precautionary principle
Topic 4 Ecology Copyright © by Alex Black. All Rights Reserved.