A population of annual grasses increases in size by 12% every year. What is the approximate doubling time?

Is this a question? i'm confused

The process of photosynthesis

Other organisms can change their behavior to take the place of the plants in the ecosystem.

If you decide to make the leap to horse ownership it truly is a life changing event. once you sign the dotted line on the bill of sale you will have full responsibility for care, custody, training and financing your new horse.  . and leasing is just for a period of time for a amount of )