People, Development and Environment – Previous Year Questions
191 questions from past UGC NET Paper 1 papers, each with the correct answer. Open any question for its explanation.
- A tsunami is a:
- Which one of the following is a chemical parameter to measure the water quality?
- Which one of the following is not an air pollutant?
- International Solar Alliance (ISA) is the alliance of countries, most of which lie
- Biomass A. is a carbon cycle neutral fuel B. has significantly higher calorific value than coal C. can be converted in solid, liquid and gaseous fuels D. can be converted into Producer Gas E. can not be obtained from en…
- Hydrochlorofluorocarbons (HCFCs), replacement for chlorofluorocarbons (CFCs), have to be phased out completely by the year
- Softening of hard water is done by A. Aeration B. Boiling C. Lime soda D. Ozonation E. Ion exchange Choose the correct answer from the options given below:
- Due to over fertilization of lakes, quality of fish produced
- In Kyoto protocol, how much target was fixed for the reduction of concentration of Green House Gases (GHGs) below 1990 level, during first commitment period 2008-12 by state parties?
- Which of the following are biogas? (A) Marsh Gas (B) Swamp Gas (C) Producer Gas (D) Compost Gas (E) Flue Gas Choose the correct answer from the options given below:
- Which one of the following is considered to be the finest particulate matter?
- Which one of the following is an example of natural climate forcing?
- Which of the following are true about Pyrolysis? (A) It produces less air pollution than complete incineration. (B) It is done in the presence of oxygen. (C) Instead of oxidation a complex series of decomposition and ot…
- What is the mission of International Solar Alliance?
- Amount of destruction caused by an earthquake is measured by:
- Which of the following are consequences of Global Warming? (A) Change in Hydrological Cycle (B) Species Migration (C) Change in Ocean Circulation (D) Ocean Acidification (E) Sea level rise Choose the correct answer from…
- Which of the following is not a disease caused due to exposure of Ultra Violet (UV)-rays, one of the environmental hazards due to ozone layer depletion?
- Because of Biochemical Oxygen Demand (BOD), Dissolved Oxygen (DO) of a water body:
- Which of the following are true about pure rain water? A. It is naturally acidic B. It is naturally basic C. It is neutral (neither acidic nor basic) D. It's pH value is 7 E. It is called as acid rain when pH becomes le…
- In which of the following steps of hydrological cycle water is purified?
- The scale, which not only measures the intensity of earthquake but also its impact on people, is known as
- Match the LIST-I with LIST-IILIST-I (Disinfectant byproducts (DBPs) of Chlorine) LIST-II (Chemical Composition) A. Dibromochloromethane I. CHBr₂Cl B. Bromoform II. CHCl₃ C. Bromodichloromethane III. CHBrCl₂ D. Chlorofor…
- Which of the following are true about moderator used in nuclear reactors? A. Moderators slow down neutrons to sustain the chain reaction B. Moderators stops the neutrons to control chain reaction C. Without a moderator…
- What is the correct sequence, from initial to final, of blue baby disease, methemoglobinemia, in human infants? A. Conversion of nitrate ions to nitrite ions by microorganisms in human body B. Oxidation of ions from Fe(…
- Electrostatic Precipitator is used in Thermal Power Plants to remove which of the following air pollutants?
- Match the LIST-I with LIST-II:LIST-I (Types of water pollutant) LIST-II (Example) A. Disease Causing Agent I. Fine particles of clay B. Oxygen Consuming Waste II. Coliform Bacteria C. Plant Nutrient III. Animals and Pla…
- Match the LIST-I with LIST-II:LIST-I (Waste water treatment process) LIST-II (Explanation) A. Ozonation I. Removal of excess iron and manganese B. Aeration II. Removal of large solids C. Flocullation III. Disinfection D…
- What is the correct increasing order of U-235 (fissile uranium) ratio in following? A. Natural Uranium B. Uranium Ore C. Weapon grade uranium D. Reactor grade uranium Choose the correct answer from the options given bel…
- International day for biological diversity is observed on
- Which of the following is a chemical treatment process in context to water treatment?