Is oxygen gas freely available in the atmosphere? 2. How is oxygen used by animals?

Question

Give the answers based on figures: Oxygen cycle 1. Is oxygen gas freely available in the atmosphere? 2. How is oxygen used by animals? 3. How are we using carbon as a fuel? 4. How to plants use carbon as their food source? 5. How do animals use carbon? 6. Which type of bio-geo-chemical cycles does carbon follow? Select the correct answer from above options Science questions and answers, Science questions pdf, Science question bank, Science questions and answers pdf, mcq on Science pdf,Science book pdf,Science pdf notes,Science lecture notes,Science of light,maxwell Science,Science proposed by,electromagnetic theory engineering physics,Science nptel

Answer 1

1. Oxygen gas is freely available in the atmosphere. 2. Oxygen is used in respiration by the animals. 3. Fossil fuels are a form of carbon which are used as fuel by us. 4. Plants take up carbon in photosynthesis and convert it into starch which is their food source. 5. Animals use carbon in form of organic compounds and inorganic compounds. 6. Carbon follows gaseous and sedimentary biogeochemical cycles.