Question

What evidence supports the law of conservation of energy? (5 points)

a
Mechanical energy is converted to chemical energy during photosynthesis.

b
Oxygen is made from the breakdown of carbon dioxide during photosynthesis.

c
Energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis.

d
The sun gives off light energy that is absorbed by plants.

Answer 1

The right answer is C

I will explain the law of conservation of energy by photosynthesis:

The conservation principle states that the energy of an isolated system (chlorophyll) can not vary.

On the other hand, if the system is not isolated (it is in the nature, exposed to the sun), that is to say if it can exchange with the outside, (the chlorophyll will absorb the photons put by the Sun). Thus the system transforms this absorbed energy into another form (glucose in the case of photosynthesis).

Answer 2

Option c is the correct answer