The first pyramid diagrams were prepared by Charles Elton in the 1920s. His pyramids were based on field observations of the numbers of animals in different size classes.
An electrical generator is any device capable of supporting a difference of electrical potential between two of his points.
Land and water are in a natural ecological system are called watersheds. From the smallest to the most powerful river, the water works to shape the earth, and with it sediment and dissolved materials drain the water courses and in most cases finally to the sea.
Beauty products. Is it better to use cosmetic products or homemade stuff?
A paper for an Environmental Science class detailing the eventual coverage of the area by flora. Areas observed were separate regions in south-central New Jersey.
Energy is at the heart of our daily lives. The increase of price of the petrol and pollution problems have resulted in search for new renewable, alternative energy. With the apparent climate change, we must find a new form of usable energy that doesn’t pollute the atmosphere. That is why solar energy is a good alternative.