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.
Sound: Exploring Wavelength, Frequency, and Beyond Sound, a fundamental part of our daily lives, fills the world with music, conversation, and the cacophony of nature. But what exactly is sound? How does it travel? This essay delves into the fascinating world of sound, explaining its nature, exploring the concepts of wavelength and frequency, and venturing into the realms of infrasonic and ultrasonic sounds.