The source of oxygen in photosynthesis is

Related Mcqs:

1. In night, when photosynthesis is stopped, plants__________?

   A. take in Carbon Dioxide B. give off Oxygen C. give off Carbon Dioxide D. None of these...

2. In which part of the Plant does photosynthesis take place?

   A. Flowers B. Roots C. Stem D. Leaves Submitted by: ABDUL HAYEE...

3. Which of the following gases do plants and trees give out during photosynthesis?

   A. Hydrogen B. Nitrogen C. Oxygen D. Carbon dioxide Submitted by: ABDUL HAYEE...

4. Which one of the following wavelengths of light is most effective in photosynthesis?

   A. Blue B. Green C. Orange D. Yellow Submitted by: Malik Asghar Hussain...

5. The human brain uses__________ percent of the total oxygen and blood in the body?

   A. 20 B. 12 C. 35 D. 48 Submitted by: ★ ɪʟʏᴀsɪʟᴜ ★...

6. 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...

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

   A. 550 B. 2500 C. 1,050 D. 10,000 Submitted by: Muhammad Awais Tariq...

8. 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...

9. __________ gas is released when coal is burnes in ln lack of Oxygen?

   A. Carbon Dioxide B. Methane C. Ethene D. Carbon Monoxide Submitted by: Rizwan Ahmed Panhwar...

10. Which of the following organisms releases molecular oxygen into water?

    A. E.coli B. Phytoplankton C. Amoeba D. Salmonella Submitted by: Malik Asghar Hussain...