The ozone layer, located in the Earth’s stratosphere, shields life from harmful ultraviolet (UV) radiation. Human-made substances, such as chlorofluorocarbons (CFCs), contribute to ozone depletion, threatening environmental and health impacts.
Discussion Forum Latest Questions
In house wiring, three colored wires are typically used: Live (or Phase): Usually red or brown, carries current to the appliance. Neutral: Usually blue or black, completes the circuit. Earth (Ground): Usually green or green/yellow, provides a path for electrical ...
A curved mirror, whether concave or convex, has a focal point where parallel rays either converge (concave) or diverge (convex). This point, called the focal point, is crucial in understanding image formation and optical properties of curved mirrors.
Water in plants moves through xylem vessels via capillary action and transpiration. Root absorption, cohesion, and adhesion contribute to the upward flow, ensuring nutrient transport and maintaining plant turgidity.
Thermit process is a metallurgical reaction where a mixture of aluminum powder and a metal oxide, typically iron oxide, undergoes an exothermic reaction, producing molten metal and heat.