19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which of the following interrelation with our surroundings are included in environmental studies?
Environmental chemistry deals with the study of the
A substance which cause pollution is known as
Pollutant can be found in the form of : I. Solid II. Liquid III. Gas The correct option(s) is/are
An average human being requires nearby…A… times more air than the food. Here, A refers to
Non-biodegradable pollutants are created by
There are concentric layers of air regions around earth and each layer has….A. Here, A refers to
The troposphere extends up to the height of A Km from the sea level. Here A refers to.
Stratosphere lies above sea level between :
Which of the following atmosphere layer contains clouds, water vapour and air?
Ozone layer is present in: I. Mesosphere II. Hydrosphere III. Mesosphere IV. Stratosphere
Ozone layer absorbs mainly …A… Here, A refer to.
Which of the following pollutant(s)catalyse(s) the oxidation of sulphur dioxide to sulphur trioxide?
In an automobile engine, (at high temperature) when fossil fuel is burnt, N2 and O2 combine to yield :
The irritant red haze in the traffic and congested place is due to…A..
Which of the following are the harmful effect of nitrogen dioxide? I. It retards the rate of photosynthesis II. It causes respiratory disease in children III. It is toxic to living tissues.
Which of the following statement(s) is//are true about carbon monoxide?
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 :
Which of the following is responsible for damaging Tajmahal and other monuments near Agra ?