Terrance farming consists of farming in hills/ mountains, where "steps" are cut to the until they are flat to allow plants to grow on there.
slash and burn consists of burning down plants, waiting a year or so, and then planting on top of the "new" soil.
Out of the two, i believe Terrance farming is better.
hope this helps
A free market system is where the government has no rule over the market system and canot make eny rules on it
Smallest to largest of the inner planets is: Mercury, Mars, Venus, Earth. Hope this helps!