What gas is actually a waste product of photosynthesis?
- Correct Answer: oxygen
- nitrogen
- carbon dioxide
- hydrogen
Explanation: Around 3 billion years ago, photosynthesis began. Organisms could make their own food from sunlight and inorganic molecules. From these ingredients they made chemical energy that they used. Oxygen is a waste product of photosynthesis. That first oxygen combined with iron to create iron oxide. Later on, the oxygen entered the atmosphere.
More Random Questions
Q: What is the function of the starter motor in a vehicle?
Ans: Starts the engine
Ans: Starts the engine
Q: In modern surgery, which condition is treated with a laminectomy?
Ans: Spinal stenosis
Ans: Spinal stenosis
Q: Where has the 19th 'Divya Kala Mela' been inaugurated?
Ans: Visakhapatnam
Ans: Visakhapatnam
Q: What do we call the phase of nuclear division, in which one nucleus divides and becomes two nuclei?
Ans: mitosis
Ans: mitosis
Q: What studies ancient human remains?
Ans: Anthropology
Ans: Anthropology
Q: Filter feeders called rotifers collect digestive and excretory wastes in what primitive organ?
Ans: cloacal bladder
Ans: cloacal bladder
Q: Which scheme provides Rs. 6
Ans: 000 annually to farmers?
Ans: 000 annually to farmers?
Q: What was the impact of core services inflation in February 2025?
Ans: Increased inflation
Ans: Increased inflation
Q: Who has been awarded the 26th CEAT Cricket Award?
Ans: Rohit Sharma
Ans: Rohit Sharma
Q: Which modern vaccine prevents typhoid?
Ans: Typhoid vaccine
Ans: Typhoid vaccine
Q: Who has been appointed as the regular MD of NAFED on October 28, 2024?
Ans: Deepak Agarwal
Ans: Deepak Agarwal
Q: Who has launched the 'Vision Portal'?
Ans: Dr. Jitendra Singh
Ans: Dr. Jitendra Singh
Q: On August 8, 2024, which country won the second title of the CAVA Women’s Volleyball Nations League?
Ans: India
Ans: India
Q: Which Mughal ruler faced the Battle of Samugarh?
Ans: Aurangzeb
Ans: Aurangzeb
Q: According to Sushruta, which Basti is contraindicated in Athisara?
Ans: Nirooha Basti
Ans: Nirooha Basti