Aerosols through its direct or indirect effects on plants can cause various problems in agriculture.
However, continuous increase in air pollution may represent a threat to agriculture in the future that is persistent and largely irreversible.
High amount of organic waste in a lake will trigger and activate decomposer microbes which will decompose organic waste.
Biochemical Oxygen Demand (BOD) of this lake will shoot up and decomposers will utilise most of the dissolved oxygen present in lake.
Consequently the level of dissolved oxygen will go down to alarming extent.
Aquatic animals like fish which totally depend on the oxygen dissolved in water will ultimately die.
DDT is non-biodegradable and is not metabolised within the body of an organism rather it accumulates in the fat tissues therefore its concentration goes on increasing from one trophic level to another of a food chain, highest amount being present in top consumer i.e., it shows biomagnification.
In an aquatic food chain sea gull is the top carnivore therefore will possess highest concentration of DDT.
Biochemical oxygen demand (BOD) is the measure of oxygen required by aerobic decomposers for biochemical degradation of the biodegradable organic materials.
BOD indicates the degree of organic pollution in water.
Petroleum is not degraded by decomposer microbes.
Joint Forest Management originated in West Bengal accidentally at the Arabari Forest Range in West Midnapore, near Midnapore town in 1971.
After the initial successes in West Bengal and Haryana, the JFM schemes received national importance in the legislation of 1988.
Domestic sewage rich in organic waste leads to increase in Biological Oxygen Demand, which leads to decrease D.O. (dissolved oxygen) which leads to death of fishes.
The ozone layer or ozone shield refers to a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation.
It contains high concentrations of ozone (O3) relative to other parts of the atmosphere.
Due to eutrophication, water bodies lack oxygen causing death of aquatic life.
Acid rain is rainfall and other forms of precipitation with a pH of less than 5.
Acid rain is caused by large scale emission of acidic gases into the atmosphere from thermal power plants, industries and automobiles.
The common ones are sulphur dioxide, nitrogen oxides (NO x ), volatile organic carbons (VOCs) and hydrogen chloride.
Sulphur dioxide and nitrogen oxides are changed in the atmosphere into sulphuric acid and nitric acid by combining with oxygen and water, which then fall on earth in the form of acid rain.
Lichens cannot grow in places where sulphur dioxide is present in the environment.
