Environmental Science – Water Pollution

Any harmful substance towards water quality and aquatic life is considered a pollutant. They can be diseases, carriers, inorganic chemicals, sediments, radioactive chemicals, heat, or feces. There are multiple ways to measure water quality, especially the water quality index (WQI) that compiles several different measurements. Biological oxygen demand (BOD) is the amount of dissolved oxygen [...]

Environmental Science – Energy Use

Hey everybody this talk is about energy use. Everything requires energy, and energy exists in multiple forms (read last post). There are two categories of energy: renewable and non-renewable. Renewable energy are replenished by the Earth, and we will not run out of this energy. Examples include biomass. Perpetual energy is a form of renewable [...]