A pollutant is any substance, chemical or other factor that changes natural :
The pollutant released from motor vehicles :
Among the pollutants motor vehicles produce are various sulfur oxides, nitrogen oxides, unburned hydrocarbons, carbon dioxide, carbon monoxide and particulates.
Lichens do not like to grow in cities because of :-
Carbon dioxide in atmospheric air amounts to be about :
Greenhouse effect is related to :
The greenhouse effect is due to :
Which of the following gases contributes maximum to the 'Greenhouse effect' on earth ?
Greenhouse effect can be defined as the trapping of the radiations of the sun by the atmospheric gases and the subsequents reflection on the earth’s surface causing global warming. There are many greenhouse gases like water vapour, methane, CFCs, etc. but carbon dioxide is the major concern because it has contributed to most of the Global Warming 1750 to 2011 as per IPCC data and it tends to accumulate in the atmosphere. It is released in greater amounts from the vehicular emissions, deforestation, industrial emissions etc. so it constitutes around 81% of the greenhouse gases.
Hence, the correct answer is “CO2”.
Which of the following is not a "Greenhouse gas" ?
What are the chief pollutants of the atmosphere which are most likely to deplete the ozone layer ?
Formation of ozone hole is maximum over :
Which of the following is the main factor of water pollution ?
Often in water bodies subjected to sewage pollution, fishes die because of the :
Spraying of DDT on crops produces pollution of :
Soil pollution is chiefly caused due to indiscriminate use of :
Insecticide is a type of pesticide.
Pesticides can contaminate soil, water, turf, and other vegetation. In addition to killing insects or weeds, pesticides can be toxic to a host of other organisms including birds, fish, beneficial insects, and non-target plants.
Which disease is not water borne ?
The supersonic jets cause pollution by thinning of :
Agricultural chemicals denote :
A logical sequence of carbon cycle is :-
Biogeochemical cycles are also known as :-
Which of the following is a free living nitrogen fixing bacterium present in soil ?
Foot and Mouth Disease is a highly contagious disease almost exclusive to cattle, sheep, swine, goats, and other cloven-hoofed animals. It is caused by
Agroforestry and social forestry both includes
Anthrax is a serious disease of
The IPN (Infectious Pancreatic Necrosis) and VMS (Viral Hemorrhagic Septicemia) are well known infectious diseases of
Viral diseases are severe infectious diseases which spread rapidly from one person to the other. Pancreatic necrosis (IPN) is a viral disease which occurs in salmon fish. It is mainly caused due to the premature killing of the cells in the living tissues.
Viral haemorrhagic septicemia (VHS) is a deadly infectious fish disease caused by the viral hemorrhagic septicemia virus. It afflicts over 50 species of freshwater and marine fish in several parts of the northern hemisphere.
Therefore, the correct answer is option A.
Energy flow in the ecosystem is