suppose that the producers at the base of an energy pyramid contain 330,000 kilocalories (kcal). calculate how much energy would be available at each of the next three levels of the pyramid.

all soils contain mineral particles, organic matter, water and air the combinations determine the soil's properties – its texture, structure, porosity, chemistry and color. soil is made up of different-sized particles. sand particles tend to be the biggest.

what are the choices?

carbohydrates are friendly fuel