Collection of verified questions for Pradushan Evam Uske Prakar under Environment & Ecology. Includes previous year exam questions with official answer keys and step-by-step solutions.
Which of the following is commonly used as an adulterant for mustard seeds?
Which of the following are some important pollutants released by the steel industry in India? 1. Oxides of sulfur 2. Oxides of nitrogen 3. Carbon monoxide 4. Carbon dioxide Select the correct answer using the code given below:
Brominated flame retardants are used in many household products like mattresses and upholstery. Why is there some concern about their use? 1. They are highly resistant to degradation in the environment. 2. They are able to accumulate in humans and animals. Select the correct answer using the code given below:
Consider the following: 1. Carbon dioxide 2. Oxides of nitrogen 3. Oxides of sulfur Which of the above is/are emitted from coal combustion at thermal power plants?
Lead, ingested through air or food, is a hazard to health. Since the prohibition of lead addition in petrol, which of the following are sources causing lead poisoning? 1. Smelting units 2. Pens and pencils 3. Paints 4. Hair oils and cosmetics Select the correct answer using the codes given below:
In the context of which of the following are the terms 'pyrolysis and plasma gasification' mentioned?
The size of respirable suspended particulate matter (RSPM) floating in the air is:
Which meteorological factor caused extraordinary cold weather in North India during January 2012?
Which of the following is not correctly matched? (Pollutant) - (Associated Disease)
Match List-I with List-II and select the correct answer using the code given below the lists: List-I (Air Pollutant) List-II (Affected Organ) A. Asbestos dust 1. Brain B. Lead 2. Stomach / Abdomen C. Mercury 3. Lungs D. Carbon monoxide 4. Blood stream Codes:
Match List-I with List-II and select the correct answer using the code given below the lists: List-I (Phenomenon) List-II (Compound) A. Acid rain 1. Chlorofluorocarbons B. Photochemical smog 2. Carbon monoxide C. Combination with hemoglobin 3. Sulfur dioxide D. Ozone layer depletion 4. Unsaturated hydrocarbons Code: A B C D
Euro norms define the permissible emission limits for a gas in motor vehicles. This gas is:
In India, 'Extended Producer Responsibility' (EPR) was introduced as an important feature in which of the following?
Incinerators are used for which of the following?
The 'R2 Code of Practices' provides tools to encourage the adoption of:
There is some concern regarding the nanoparticles of some chemical elements that are used by the industry in the manufacture of various products. Why? 1. They can accumulate in the environment, and contaminate water and soil. 2. They can enter the food chains. 3. They can trigger the production of free radicals. Select the correct answer using the code given below:
Which of the following pollutants is biologically degradable (biodegradable)?
Due to improper handling and storage of cereal grains and oilseeds, toxins known as aflatoxins are produced which are not commonly destroyed by normal cooking methods. Aflatoxins are produced by:
In the context of proposals to the use of hydrogen-enriched CNG (H-CNG) as fuel for buses in public transport, consider the following statements: 1. The main advantage of the use of H-CNG is the elimination of carbon monoxide emissions. 2. H-CNG as fuel reduces carbon dioxide and hydrocarbon emissions. 3. Hydrogen up to one-fifth by volume can be blended with CNG as fuel for buses. 4. H-CNG makes the fuel less expensive than CNG. Which of the statements given above is/are correct?
Consider the following pairs: Commonly used / consumed materials Unwanted or controversial chemicals likely to be found in them 1. Lipstick Lead 2. Soft drinks Brominated vegetable oil 3. Chinese fast food Monosodium glutamate Which of the pairs given above is/are correctly matched?
By which year has the Bihar Government planned to reduce carbon emissions and make Bihar a 'pollution-free' state?
In the context of which of the following do some scientists suggest the use of cirrus cloud thinning technique and the injection of sulphate aerosol into stratosphere?
Match the pollutants with their long-term health effects using the code given below: Pollutants Effects A. Carbon monoxide 1. Damage to liver and kidney B. Oxides of nitrogen 2. Cancer C. Particulate dust 3. Respiratory diseases D. Lead 4. Central nervous system Code: A B C D
The most toxic metal pollutant released in automobile exhaust is:
To meet Euro-II standards, what should be the sulfur content in ultra-low sulfur diesel?