Answer:
Mass doesn't change no matter where you are or where you go.
Explanation:
Mass is what you or an object consist of. You cant change mass
Answer:
Answer b is the right one
The outer skeleton provides protection due to the fact that invertebrates do not have backbones
Green plants and trees use photosynthesis to make food from sunlight, carbon dioxide and water in the atmosphere: It is their primary source of energy. The importance of photosynthesis in our life is the oxygen it produces. Without photosynthesis there would be little to no oxygen on the planet.