A. Methane
B. Hydrogyn
C. Oxygen
D. Carbin dioxide
Submitted by: Farhan Rana
Biogas comprises primarily methane (CH4) and carbon dioxide (CO2) and may have small amounts of hydrogen sulphide (H2S), moisture and siloxanes.
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A. Methane
B. Hydrogyn
C. Oxygen
D. Carbin dioxide
Submitted by: Farhan Rana
Biogas comprises primarily methane (CH4) and carbon dioxide (CO2) and may have small amounts of hydrogen sulphide (H2S), moisture and siloxanes.
A. Animal wastes
B. Forest residues
C. Aquatic plants
D. None of these
Submitted by: Yamna khan
A. Heavy snowfall
B. Earthquakes
C. Deforestation
D. Construction of dams
Submitted by: Muhammad Tahir
A. Chlorine
B. Iron
C. Calcium
D. None of these
A. Oxygen
B. Nitrogen
C. Hydrogen
D. Helium
Submitted by: Mirza Musawer Jamil
A. Calcium oxide &Ammonium Chloride
B. Calcium Carbonate &Megnesium Carbonate
C. Aragonite & Conchiolin
D. None of these
Submitted by: Fahad Mehsud
A. Mercury
B. Mars
C. Earth
D. Neptune
Submitted by: Noor Ahmed
A. 94%
B. 90%
C. 47%
D. None of these
Submitted by: Rida
A. Promethium
B. Ununoctium
C. Francium
D. Technetium
Submitted by: Malik Asghar Hussain
A. unicellular
B. multicellular
C. acellular
D. none of these
Submitted by: Shoaib Shah
A. Na
B. Fr
C. Fe
D. Zn
Submitted by: Ali Mallah
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