9 : a. # of seeds
10 : d. amount of time given
Answer: Horizon O forms from organic material. And Horizon C is least affected by the soil formation process. Bedrock lies below the soil layers.
The area of Earth where ozone is primarily produced is in the tropics.
i think that before the Krebs cycle begins, pyruvic acid, which has three carbon atoms, is split apart and combined with an enzyme known as CoA.
This invention was a commercial failure. Edison resolved that in the future he would only invent things that he was certain the public would want. ... This gave Edison the money he needed to set up his first small laboratory and manufacturing facility in Newark, New Jersey in 1871.
found at: https://www.nps.gov/edis/learn/historyculture/edison-biography.htm
