https://www.youtube.com/watch?v=DcfO7bpp8BA&w=470&h=320 Radicals are uncharged species which contains one or more unpaired electrons. Chloro-radicals from CFCs, contributes to ozone destruction. There are three main process; initiation,…
https://www.youtube.com/watch?v=-oGiGFtC6Jk&w=470&h=320 Mixtures can be classified under 3 categories; solutions, suspensions and colloids. Solutions can be saturated (contain the maximum possible amount of solute), unsaturated (contain…
Green energy is obtained from resources which are naturally replenished, such sunlight, tides and organic matter. Photovoltaic cell (PV cell) is an electrical device that…
https://www.youtube.com/watch?v=rxY4sPc–IY&w=470&h=320 Pollutant Standards Index (PSI)is an index of daily air quality levels. Haze is an atmospheric condition where dust, smoke and other dry particles obscure…
https://www.youtube.com/watch?v=dO2Nq5oB54c&w=470&h=320 Carbon monoxide (CO) is a colorless, odorless, and tasteless gas. It is produced by incomplete combustion of fuels. When carbon monoxide enters our body,…
Water molecule is bent in shape, is a polar molecule; it has one side that is positively charged and one side that is negatively charged…
https://www.youtube.com/watch?v=N2jFsT0IXJQ&w=470&h=320 Plastics are typically macromolecules derived from petrochemical, consisting of repeating monomer units bonded together. High-density polyethylene (HDPE) is used in the production of corrosion-resistant…
https://www.youtube.com/watch?v=35SYdVUSjLw&w=470&h=320 The Chapman cycle is the process by which ozone is continually regenerated in Earth’s stratosphere when ultraviolet rays react with oxygen molecules.The ozone-oxygen cycle…
https://www.youtube.com/watch?v=lVjpDjM0ggg&w=470&h=320 An antacid is a substance which neutralizes stomach acidity, which in turn relieves heartburn, indigestion or stomach upset. Side effects of antacid are diarrhea,…
https://www.youtube.com/watch?v=5zJjTv4lJes&w=470&h=320 The atmosphere of earth has 5 layers; troposphere, stratosphere, mesosphere, thermosphere and exosphere. Our ozone layer is found in stratosphere, where most of the…