Which of the following organisms releases molecular oxygen into water?

Related Mcqs:

1. Which of the following is the study of micro- organisms, mostly viruses and single called organisms such as bacteria, yeasts and protozoa ?

   A. Microbiology
   B. Micrology
   C. Histopathology
   D. Tavelogy

   Submitted by: Rashid Mehmood

2. Disolved oxygen (DO) in water should be?

   A. 400 to 800 ppm
   B. 4000 to 8000 ppm
   C. 0.4 to 0.5 ppm
   D. 4 to 5 ppm

   Submitted by: Palestine

3. What is the Molecular Formula for Glucose _______ ?

   A. C4H10O6
   B. C5H11O6
   C. C6H12O6
   D. S6H12O6

   Submitted by: Rashid Mehmood

4. What is the molecular formula for Ammonia?

   A. NH
   B. NH2
   C. NH3
   D. NH4

   Submitted by: Rashid Mehmood

5. What is the molecular weight of Ammonia (NH3) ________ ?

   A. 17.031 g/mol
   B. 18.031 g/mol
   C. 19.031 g/mol
   D. 27.033 g/mol

   Submitted by: Rashid Mehmood

6. What is the molecular formula for Nitric acid ________ ?

   A. HNO2
   B. HNO3
   C. HN2O2
   D. H2NO4

   Submitted by: Rashid Mehmood

7. Which of the following is responsible for largest amount of oxygen on earth?

   A. Peat bogs
   B. Algae
   C. Trees
   D. None of these

   Submitted by: Malik Asghar Hussain

8. The study of organisms and their environment is known as ________?

   A. Acoustics
   B. Ecology
   C. Ichthyology
   D. None of these

   Submitted by: Kashif Ashraf

9. The source of oxygen in photosynthesis is

   A. water
   B. salts
   C. minerals
   D. glucose

10. Human beings use _______ liters of pure oxygen per day.

    A. 550
    B. 2500
    C. 1,050
    D. 10,000

    Submitted by: Muhammad Awais Tariq