Last seen: Sep 30, 2021
Phytoplanktons and aquatic plants → Zooplanktons and small aquatic animals and larvae, insects, etc. → Fish → Bird.
Improper disposal of waste is a curse to environment because it pollutes the environment, air, water, soil and cause harmful effects on living organis...
Biological magnification.
Grass and plants belong to the 1st trophic level of a food chain.
10 J energy would be available to deer to transfer to lion.
Garden and Pond are man-made ecosystems.
Bacteria and fungi.
The chemical compound Chlorofluorocarbon is responsible for decrease of ozone in the upper atmosphere of the earth.
Some substances are non-biodegradable because they cannot be broken down into simpler harmless substances in nature.
(i) Judicious use of aerosol spray propellants such as fluorocarbon and chlorofluorocarbons which cause depletion or hole in ozone layer. (ii) Contr...
Role of decomposers in the environment: They return the nutrients to the nutrient pool. They help in completing the different bio-geochemical cyc...
Biodegradable wastes are those substances which are broken down into simpler, harmless substances in nature in due course of time by the biological pr...
It is necessary to conserve our environment to prevent depletion of natural resources and environmental damage, thereby sustaining life.
The pesticides used in crop field are washed down into the water bodies. From water bodies, these are absorbed by aquatic plants and animals of a food...
The important function of presence of ozone in earth’s atmosphere is that it shields the surface of the earth from ultraviolet (UV) radiations of the ...
The various steps in a food chain are called trophic levels.
Trophic level is the position that an organism occupies in a food chain, where transfer of food or energy takes place.
The compounds responsible for the depletion of ozone layer are chlorofluorocarbons (CFCs).
CFCs deplete the ozone layer around the earth, hence their production is controlled by United Nations.
If we kill all the organisms in one trophic level, the following effects will take place: The population of organisms in previous trophic level wi...