Comprehensive collection of questions from Environment & Ecology asked in recent state service examinations. Each question is verified with official answer keys and step-by-step bilingual solutions.
The ozone level in the stratosphere is naturally regulated by:
Which of the following is NOT true for chlorofluorocarbons (CFCs)?
Which of the following pairs is NOT correctly matched? Greenhouse gas : Source (a) Carbon dioxide - Thermal power stations (b) Chlorofluorocarbons - Automobiles (c) Nitrous oxide - Waterlogged paddy fields (d) Sulphur dioxide - Brick kilns
Which of the following is responsible for the ozone hole?
The cause of the ozone hole is:
Which of the following gases is responsible for the depletion of the ozone layer?
Which of the following gases is responsible for ozone layer depletion?
The pollutants causing maximum damage to the ozone layer are:
The presence of which of the following in the atmosphere causes depletion of the ozone layer in the ozonosphere?
Depletion of the ozone layer in the upper atmosphere is occurring due to which of the following?
Which one of the following is NOT responsible for the depletion of the ozone layer?
Among the following greenhouse gases, which one does NOT cause ozone pollution in the troposphere?
The formation of the ozone hole is maximum over:
Consider the following statements: Chlorofluorocarbons, known as ozone-depleting substances, are used: 1. In the production of plastic foams. 2. In the production of tubeless tyres. 3. In cleaning certain electronic components. 4. As pressurizing agents in aerosol cans. Which of the statements given above is/are correct?
The formation of an ozone hole in the Antarctic region has been a cause of concern. What could be the probable reason for its formation?
Which gas is filled as refrigerant in refrigerators?
Which of the following substances are ozone depleting? 1. Chlorofluorocarbons 2. Halons 3. Carbon tetrachloride Select the correct answer from the code given below: Code:
Who among the following discovered the 'Ozone Halo' over the Tibetan Plateau in the year 2005?
Montreal Protocol is related to the protection of which of the following?
Montreal Protocol is related to:
The 'Montreal Protocol' is related to:
Which of the following pairs is NOT correctly matched? (a) First World Climate Conference - 1979 (b) First Earth Summit - Agenda 21 (c) Earth Summit +5 - 1997 (d) Montreal Protocol - 1992
September 16 is celebrated as which day?
World Ozone Day is celebrated on:
The total amount of greenhouse gases produced to directly and indirectly support human activities is called: