What are all the products of a hydrocarbon combustion reaction? A. Hydrogen, carbon, and oxygen
B. Carbon dioxide, water vapor, and heat
C. Oxygen, a carbon-based molecule, and heat
D. Carbon dioxide, oxygen, and water

a boiling water reactor does not boil the water. a pressurized water reactor boils the water faster. a pressurized water reactor is heated directly by the core. a pressurized water reactor does not use fission.

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error