Renewable energy is energy produced from sourece that do not deplete or can be replenished within a human’s life time. The most common examples include wind, solar, geothermal, biomass, and hydroelectric power. This is in contrast to non-renewable sources such as fossil fuels. How is renewable energy replenished? Renewable energyRead More →
Carbon, hydrogen and oxygen, three of the essential plant nutrients, are taken up from the atmosphere and from water. The other essential nutrients come from the soil. The major nutrients, or macronutrients, supplied by the soil are nitrogen, phosphorus, potassium, sulphur, magnesium and calcium. What is replenish of soil? SoilRead More →
RENEWABLE RESOURCE – any natural resource that can replenish itself naturally over time or from human intervention. We can get more over time. Trees, plants, animals, water. Which of the following energy sources is not renewable on human time scale? Most non-renewable energy sources are fossil fuels: coal, petroleum, andRead More →