List of objects that float:
Ice
Wood
Rubber
Soda cans
Plastic toys (such as a duck)
Innertubes
Balloons
Frisbees
Legos
Plastic containers (Tupperware, etc.)
Answer:
Iron and Magnesium are the elements
Answer:
A. by reacting animal fat or vegetable oil with water.
D. by treating animal fat or vegetable oil with hydrogen
Explanation:
Water is insoluble in animal fat or vegetable oil so it makes a layer on the surface of oil. When animal fat or vegetable oil react with hydrogen, it produces solid oil called ghee not biofuels. Biofuel is produced when animal fat or vegetable oil react with alcohol.