For aquatic animals and plants, ice acts serves as a cover for aquatic ecosystem reducing the amount of energy, nutrients, and oxygen in the world of low temperatures.
The diversity in the supermarket shows up in the difference in roles of the 'species' in the ecology. The removal of the supermarket from the ecology complicates the arrangement between the suppliers and the customer.
The soil, plants and animals are three components of the terrestrial environment that need conservation in order to avoid depletion of natural resources or pollution of the environment.