Highly reactive ozone (O3) lacks the structure of a free radical. Understand its unique oxidation mechanism and the resulting serious risks to respiratory health.
Identify brown and white raptors by moving beyond color. Learn to use essential clues like size, flight behavior, geographic range, and seasonal factors for accurate hawk ID.
Clarify what COVID-19 stands for. Learn the official WHO naming rules, why the number 19 is used, and the crucial distinction between the disease and its viral cause.