Why should the percentage of allowed weed or other crop seed be under 2 percent? O These other plants will compete with the desired plant for attention, rain, and desiccants.
O These other plants will compete with the desired plant for light, space, and nutrients.
O These other plants will compete with the desired plant for shelf space, threshing, and roguing.
O These other plants will compete with the desired plant for soil, worms, and warmth.

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy

when it is at an intermediate population density