The main Constituent of Biogas is__________?

Related Mcqs:

1. For the generation of biogas, the materials commonly used are__________?

   A. Animal wastes
   B. Forest residues
   C. Aquatic plants
   D. None of these

   Submitted by: Yamna khan

2. The main cause of floods in the river is__________?

   A. Heavy snowfall
   B. Earthquakes
   C. Deforestation
   D. Construction of dams

   Submitted by: Muhammad Tahir

3. The main constituent of hemoglobin is___________?

   A. Chlorine
   B. Iron
   C. Calcium
   D. None of these

4. Main constituent in air is ___________?

   A. Oxygen
   B. Nitrogen
   C. Hydrogen
   D. Helium

   Submitted by: Mirza Musawer Jamil

5. The main constituent of Pearls are: ______________?

   A. Calcium oxide &Ammonium Chloride
   B. Calcium Carbonate &Megnesium Carbonate
   C. Aragonite & Conchiolin
   D. None of these

   Submitted by: Fahad Mehsud

6. The Planet which revolves slowly around the Sun is__________?

   A. Mercury
   B. Mars
   C. Earth
   D. Neptune

   Submitted by: Noor Ahmed

7. Percentage of water in a tomato is__________?

   A. 94%
   B. 90%
   C. 47%
   D. None of these

   Submitted by: Rida

8. The heaviest man made element found so for is__________?

   A. Promethium
   B. Ununoctium
   C. Francium
   D. Technetium

   Submitted by: Malik Asghar Hussain

9. Virus is__________?

   A. unicellular
   B. multicellular
   C. acellular
   D. none of these

   Submitted by: Shoaib Shah

10. Symbol of Iron is__________?

    A. Na
    B. Fr
    C. Fe
    D. Zn

    Submitted by: Ali Mallah