Unanswered questions

[Drich]

If plant life started out at 125% or more under a sun that produces less heat and less uv because green house gasses were much much lower than now, and the plants de-evolved to work at 100% or less of direct sun exposure, then why did they start out so effencient? that is the question being asked.

Is there a basis for the 125% and 100% numbers? What if those "original" plants were 101% more efficient than later plants? Or 100.25% more? What if they started out only 99% efficient and gradually became more efficient, thus hitting that magic 125% mark much later on?

Maybe Kent Hovind is right, and there was a "canopy of ice" that surrounded the Earth, and therefore the plants had to be 250,000,000% more efficient!!!

The sun=100% of avaiable of solar energy currently avaiable for photosynthsis. The extra 25 to 50 % repersents how much more things like algae can process over and above the current max output of the sun.