How did humans learn to plant?

What is soil-building process? What is distal radioulnar joint effusion? What is the snow capped mountains and active volcanoes in south? Is a tree growing a chemical or a physical change? What best describes the universe before the Big Bang for a k12 student? When hydrogen molecules and oxygen molecules are burned in a closed chamber what are the result? Why does the ice pack seem to leak yet when you test it it seems fine It leaves a wt spot on the bed in the middle of the night? Where did the first volcano erupte? Does Californium have a nickname? How do you convert foot into square meters? What does pH do to the structure and function of macromolecules? How much is milk in china? How many pounds equal lbs? What kind of air mass brings hot dry weather? Has Auckland ever had an earthquake? Is gypsum permeable? How many days does it take the Earth revolve around the sun one time? Is unfiltered air homogeneous? How many water molecule's would be needed to break amylase down into four glucose molecule's? Which kind of organsim does not generally require oxygen or sunlight to live?