General knowledge questions and answers of science

General knowledge questions and answers of science  1. During photosynthesis which gas do the plants absorb? a. Carbon dioxide b. Oxygen c. Carbon 2. What common liquid does the chemical formula H₂O represent? 2 a. Water b. Oil c. Milk 3. Which is the longest bone in a human body? a. Tibia b. Ulna c. … Read more