Multiple Choice Questions (MCQ) on Environment Science
11- Which of the following catalyst is used for removing hydrocarbon from gaseous pollutant in combustion unit?
(A) Activated alumina
(B) Platinum
(C) Vanadium
(D) Potassium permanganate
12- What happens during the breakdown of ozone?
(A) CO2 is formed
(B) Nascent oxygen is formed
(C) CO2 and Nascent oxygen is formed
(D) Formation of oxygen and water takes place.
13- The humus in the soil is the:
(A) Organic portion of the soil remaining after prolonged microbial decomposition
(B) Heterogeneous mixture of products resulting from the microbial and chemical transformation of organic materials
(C) Complex of organic compounds, living organisms, water and includes gases
(D) All of the above
14- Iron & manganese present in the polluted water is removed by _______.
(A) Simple filtration
(B) Chemical coagulation
(C) Oxidation followed by settling & filtration
(D) Chlorination only
15- What type of colloid is an aerosol?
(A) Solid in gas
(B) Gas in solid or fluid
(C) Fluid or solid in gas
(D) Fluid in gas
16- The highest contribution to overall albedo comes from_______.
(A) Ice
(B) Clouds
(C) PM
(D) Ocean
17- In coal formation the complete carbonification process produce _______.
(A) Anthracite
(B) Bituminous
(C) Sub-bituminous
(D) None of the above
18- Mina Mata disease was caused due to _______
(A) Intake of Mercury
(B) Intake of Lead
(C) Intake of Arsenic
(D) Intake of Cadmium
19- An energy source that is difficult to extract but contains a large amount of energy is:
(A) Hydrogen
(B) Crude oil
(C) Natural gas
(D) Anthracite
20- Which one of the following is marker for tyre wear emission by transportation?
(A) Zn
(B) Al
(C) Cr
(D) Fe
ANSWERS:
11-(A), 12-(B), 13-(D), 14-(C), 15-(C), 16-(B), 17-(A), 18-(A), 19-(A), 20-(A)