Plants make their own food from the sun through process of photosynthesis, base on the law of conservation of energy, is this description accurate?

How do you date a sample of rock that you suspect as being one of the earliest on earth

Why do we perceive objects as retaining their brightness under different lighting levels?

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.