Believe it or not, ice is actually about 9% less dense than water. Since the water is heavier, it displaces the lighter ice, causing the ice to float to the top. How is ice less dense than water? ... So for water, the density actually decreases along with a decrease in temperature - causing ice to be less dense than water!
Answer:
This question is incomplete as it lacks options, however, it can be answered. The answer is:
CARBON DIOXIDE (CO2)
Explanation:
Cellular respiration is the process by which glucose is broken down in an organism's cell to release energy. Although the process involves series of reactions, however, the general equation is as follows;
C6H12O6 + 6O2 ➡ 6CO2 + 6H2O + energy
Based on the above equation, the inputs are glucose and oxygen while the outputs are carbon dioxide and water. Carbon dioxide (CO2) is the major byproduct of the respiration process.
I think it's D. It shields life forms on the surface from radiation?
