Description : Which one of the following statement is not valid for aerosols ?
Last Answer : Which one of the following statement is not valid for aerosols ? A. They are harmful to human ... D. They have negative impact on agriculture land.
Description : Aerosols reduce primary productivity by :
Last Answer : Aerosols reduce primary productivity by : A. Decreases `O_(2)` concentration B. Preventing `N_(2) ... C. Reducing photosynthesis D. None of the above.
Last Answer : Aerosols reduce primary productivity by : A. Decreasing `O_(2)` concentration B. Competing with `CO_ ... `N_(2)` fixation D. Reduction photosyntheis .
Description : Aerosols having carbon and fluorine compounds are chiefly released by
Last Answer : Aerosols having carbon and fluorine compounds are chiefly released by A. Refineries B. Automobiles C. Industries D. Jets.
Description : Which aerosols deplete ozone
Last Answer : Which aerosols deplete ozone A. Smoke B. Nitrogen oxides C. Freons D. 2 and 3
Description : Aerosols having carbon and fluorine compounds are chiefly released by: (a) Refineries (b) Automobiles (c) Industries (d) Jets 3. Coir of commerce is obtained from: (a) Endocarp of coconut (b) Mesocarp of coconut (c) Stem of jute (d) Leaves of coconut
Last Answer : Ans. ((d))
Description : What is similarity and dissimilarity in aqua solution and solid aerosols?
Last Answer : Ans. Aqua Sols and solid aerosols both have solid as dispersed phase and have different dispersion medium. Aqua solution contain water and aerosol contain air as dispersion medium.
Description : Which one of the following statements is not valid for aerosols? (a) They alter rainfall and monsoon patterns. (b) They cause increased agricultural productivity. (c) They have negative impact on agricultural land. (d) They are harmful to human health
Last Answer : (b) They cause increased agricultural productivity.
Description : Particulates (< 1μm size) remaining suspended in air indefinitely and transported by wind currents are called (A) Fumes (B) Mists (C) Smoke (D) Aerosols
Last Answer : (D) Aerosols
Description : Carbonaceous particles having size less than 1 μm are called (A) Grit (B) Aggregates (C) Aerosols (D) Smoke
Last Answer : (D) Smoke
Description : 5-200 μm size particles are called (A) Colloids or aerosols (B) Powder (C) Dust (D) Smoke
Last Answer : (A) Colloids or aerosols
Description : Aerosols present in atmospheric air may be (A) Positively charged (B) Negatively charged (C) Neutral (D) Combination of all (A), (B) & (C)
Last Answer : (D) Combination of all (A), (B) & (C)
Description : Which one of the following statements is not valid for aerosols ? (1) They alter rainfall and monsoon patterns (2) They cause increased agricultural productivity (3) They have negative impact on agricultural land (4) They are harmful to human health
Last Answer : (2) They cause increased agricultural productivity
Description : Define Aerosols. What are advantages and disadvantages of Aerosols?
Last Answer : Aerosols may be defined as disperse phase system in which very fine solid particles or liquid droplet gets dispersed in the gases which act as continuous phase. These are pressured packages. ... to injured skin. 4. Difficulties occurred during formulation when drug not soluble in propellants.
Description : Sulfuric acid aerosols from the eruption of Mt. Pinatubo reduced the rate of global warming last year. They also contributed to the record size of: w) acid rainfalls in Europe x) the anchovy catch off Peru y) the ozone hole over Antarctica z) fish kills in the Amazon River
Last Answer : ANSWER: Y -- THE OZONE HOLE OVER ANTARCTICA
Description : One source of Acid Rain is: w) sulfur in fossil fuels x) carbon in coal y) hydrogen in hydrocarbons z) chloroflorocarbons in aerosols
Last Answer : ANSWER: W -- SULFUR IN FOSSIL FUELS
Description : Which of the following pollutants affects the respiratory tract in humans? (A) Carbon monoxide (B) Nitric oxide (C) Sulphur di-oxide (D) Aerosols
Last Answer : (C) Sulphur di-oxide
Description : Assertion (A) : Some carbonaceous aerosols may be carcinogenic. Reason (R) : They may contain polycyclic aromatic hydrocarbons (PAHs). (A) Both (A) and (R) are correct and (R) is the correct explanation of (A). (B) Both ... (C) (A) is correct, but (R) is false. (D) (A) is false, but (R) is correct.
Last Answer : Answer: A
Description : Assertion (A): Aerosols have potential for modifying climate Reason (R): Aerosols interact with both short waves and radiation (A) Both (A) and (R) are true, and (R) is the correct explanation of (A) (B) Both (A) and (R) ... A) (C) (A) is true, but (R) is false (D) (A) is false, but (R) is true
Description : Main pollutant of the Indian coastal water is (A) oil spill (B) municipal sewage (C) industrial effluents (D) aerosols
Last Answer : (C) industrial effluents
Description : Particulates (< 1 µm size) remaining suspended in air indefinitely and transported by wind currents are called (1) Mists (2) Fumes (3) Aerosols (4) Smoke
Last Answer : Aerosols