Photosynthesis:
1) Reactants = CO2, Water, Sunlight
2) Products = O2, Glucose,
Cellular Respiration:
1) Reactants = O2, Glucose
2) Products = CO2, Energy (in ATP)
Hope this helps!
The correct answer is horizon.
Hope I helped.
Answer:
One Idea was the appreciation that the age of the Earth was much greater than had hitherto for been imagined.
