A way to summarize trophic structure of ecosystems is in the form of ecological pyramids. Ecological
pyramid is also known as trophic pyramid or energy pyramid; it is graphically represented to
show the biomass or productivity of the b
PHYSICAL ENVIRONMENT, ECOSYSTEM AND POLLUTION
PROFESSOR NWACHUKWU E.O.
1.1 WHAT IS AN ENVIRONMENT
The environment is the complex set of physical, geographic, biological, social, cultural and political
conditions that surround an indivi
ENERGY FLOW IN AN ECOSYSTEM
Energy enters an ecosystem in the form of heat from the sun. The energy is absorbed by organisms
such as plants and is then converted to other forms of energy and stored.
Plants only capture about one percent of the energy that