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.
The Wonderful World of Living Things: Cells, Structure, and Diversity The world around us is teeming with life, from towering trees to tiny insects buzzing by. But have you ever wondered what the basic unit of all living things is? It's the cell , the microscopic building block that forms all living organisms! Today, we'll embark on a journey to explore the fascinating world of cells, their structure and functions, and the incredible diversity of life on Earth.