Question

What evidence supports the law of conservation of energy? Mechanical energy is converted to chemical energy during photosynthesis. Oxygen is made from the breakdown of carbon dioxide during photosynthesis. Energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. The sun gives off light energy that is absorbed by plants.

Answer 1

The law of Conservation of energy states that energy can not be destroyed or created, it can just be transformed from one form to another. There are multiple forms of energy, chemical, thermal, radiant etc.

All of the examples except - Oxygen is made from the breakdown of carbon dioxide during photosynthesis decribe some kind of transformation of different types of energy. This statement is also not true because in photosynthesis oxygen is formed from a water molecule, not from the carbon dioxide molecule.

Answer 2

Answer:

Energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis

Explanation:

The law of conservation of energy states that the energy can neither be created nor destroyed; rather, it can only be transformed.

In photosynthesis carbon dioxide and water reacts to produce glucose and oxygen. The energy needed to perform this reaction is provided by the Sun. Then, in photosynthesis solar energy is transformed into chemical energy (which is stored in the bonds of the products of the reaction)