Last seen: Sep 30, 2021
Ozone layer prevents the harmful ultraviolet radiation to enter the atmosphere and reach the earth’s surface. Depletion of ozone layer has become a ca...
The process in which harmful chemicals enter a food chain and get accumulated progressively at each trophic level is called biological magnification. ...
Decomposers are micro organisms that obtain energy from the chemical breakdown of dead organisms of animals or plants. These micro organisms breakdown...
Pesticides used in crops are washed down .into the soil. From soil these are absorbed by plants along with water and minerals and thus, they enter the...
Food chain in aquatic ecosystem: Phytoplankton → Zooplankton → Crustacean → Fish → Crane
Biodegradable substances are those substances which are broken down into simpler, harmless substances in nature in due course of time by the biologica...
Two problems caused by non-biodegradable waste that we generate in our daily life are: It clogs drains. It causes water and soil pollution.
Ozone is formed in upper atmosphere by the reaction of ultraviolet (UV) radiations on oxygen (O2) molecule. The damage to ozone layer is a cause of ...
Skin cancer is caused in human beings due to the depletion of ozone layer in the atmosphere.
Green plants are called ‘producers’ because they can produce food by photosynthesis in the presence of sunlight.
The two main components of our environment are the biotic or living components and abiotic or non-living components.
Bacteria and fungi breakdown the dead remains and waste products of organisms. These micro organisms are called the decomposers as they breakdown the ...
Two abiotic components of an environment are temperature and rainfall.
Ozone layer is getting depleted at the higher levels of the atmosphere due to effect of chlorofluorocarbons (CFCs) which are used as refrigerants and ...
The increase in demand for energy affects our environment adversely. Due to this increase, pollutants like CO, CO2, SO2, etc., are released in to the ...
Biodegradable pollutants are sewage and agricultural waste.
Biodegradable Pollutants: (i) These pollutants can be broken down into non-poisonous substances in nature by the action of microorganisms. (ii) Th...
Environmental pollution is an undesirable change in the physical, chemical or biological characteristics of the natural environment, brought about by ...
1. United Nations Environment Programme (UNEP) 2. oxygen (O2) 3. Consumers
1. biodegradable 2. non-biodegradable wastes 3. Sun