19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Content of CO2 present in atmosphere is :
Green plants require CO2 for
Which of the following gases cause global warming ? I. CO2 II. O3 III. CO IV. Chlorofluorocarbons (a)I, II and III
In cold places flowers, vegetables and fruits are grown in glass covered areas called …A…here A refers to :
Atmospheric gases trap the sun’s heat near the earth’s surface and keep it warm. This is called …A… Here A refers to
Which of the following is/are the greenhouse gases?
Which of the following greenhouse gas is released in paddy field? I. CFCs II. CH4 III. SO2
Which of the following green gas is damaging the ozone layer?
Excess use of chemical fertilizers increases the quantity of…A… (air pollutant) in the atmosphere. Here, A refers to..
pH of normal rain water is :
Rain water is slightly acidic because I. Water reacts with CO2 and forms H2CO3 II. Rain water reacts with CO and forms H2CO3 Identify the correct option:
When the pH of the rain water drops below 5., it is called …A…A, Here, A refers to :
Acid rain is due to : I. Oxides of nitrogen II. Oxides of sulphur III. Methane present in the air
How can we reduce the rate of global warming?
Aerosol particles of oxides are ammonium salts in rain drops results in …A… here A refer to.
Which of the following air pollutants is deposited as dry-deposition ?
Acid rain is harmful for: I. Agriculture II. Aquatic ecosystem III. Buildings and other structures made of stone or metal. Select the correct option;
The Taj Mahal in India is affected by pollutant:
Which of the following is responsible for damaging Tajmahal and other monuments near Agra ?
What do you mean by Taj-Trapezium?
The viable particulate stand for : I. Minute living organisms present in atmosphere II. Minute non-living particles present in atmosphere
Which of the following is not a viable particulates :
Non-viable particulates are classified on the basis of :
Mist is produced by : I. Particles of spray liquids II. Condensation of vapour in air
Herbicides and insecticides are travel through air and form …A… Here A refers to: