The Ozone Layer: Protecting Ourselves from the Sun's Fury The ozone layer, a fragile shield in the Earth's stratosphere, protects us from the harmful ultraviolet (UV) radiation emitted by the sun. This radiation can cause sunburn, skin cancer, cataracts, and damage ecosystems. Understanding the threats to the ozone layer and international efforts to mitigate them is crucial for safeguarding our planet.
DNA (deoxyribonucleic acid) is the molecule that carries the genetic instructions for building and maintaining an organism, from the simplest bacteria to the most complex animals and plants. It's like a recipe book containing the instructions for everything an organism needs to grow, function, and reproduce.