Answer:
C
Explanation:
Oxidation is the process of oxygen mixing with iron in rocks and does not involve water.
A human body consists of trillions of cells organized in a way that maintains distinct internal compartments. These compartments keep body cells separated from external environmental threats and keep the cells moist and nourished.
Answer:
Unicellular organisms
Explanation:
Because they only have one cell, they are called unicellular
Answer: two
Explanation: toasting bread is a chemical change and so is mixing the lemonade powder into water. The rest of the changes are physical.