Chemical species present in the environment are either naturally occurring or generated by human activities. Their interrelation with the surroundings is called:
In cold places, vegetables, fruits and flowers are grown in glass covered areas called green houses. This is because of one or more of the following. Choose the most appropriate.
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Which of these reactions in the atmosphere leads to acid rain?
The ozone layer found high in the stratosphere:
Rotting garbage dumps and by fossil fuels or when vegetation is burnt, paddy fields, coal mines, large amounts of one of the following gases are released.
Effect of undesirable changes in the surrounding that have harmful effects on plants, animals and human beings is termed as
Green plants help reduce environmental pollution by
The death of Scandinavian forests was blamed on:
Holes in the ozone layer are thought to have been caused by:
Avoiding burning of dry leaves and wood will help in reducing
Dichlorodiphenyltrichloroethane (DDT), plastic materials, heavy metals etc. belong to one of the following options. Choose the most appropriate.
Deforestation and burning of fossil fuel adds to the environmental pollution
Which of the following gases is not a green house gas?
Which of the following is a macronutrient?
Some pollutants breakdown by natural processes. Example is
One of the following pollutant gases naturally occurs in the environment
Sulphur dioxide levels can be reduced by using:
Photochemical smog occurs in warm, dry and sunny climate. One of the following is not amongst the components of photochemical smog, identify it.
Increase in the global temperature increases the incidence of
Tropospheric and stratospheric pollution are actually components of
Which of these atmospheric pollutants is not released by car exhausts?
Which of the following statements is not true about classical smog?
The formation of acid rain can be reduced