What is the Sky?
The sky is the space that begins from the Earth’s surface and extends outwards into outer space. It is the atmosphere that surrounds our planet and encompasses everything above us.
Types of Sky
- Daytime Sky: The sky appears blue during the day due to Rayleigh scattering of sunlight in the atmosphere.
- Night Sky: The night sky is dark, but it is illuminated by stars, planets, and other celestial objects.
- Cloudy Sky: When clouds cover the sky, it can appear gray and overcast.
Importance of the Sky
The sky plays a crucial role in our lives. It provides us with sunlight, regulates the Earth’s temperature, and is essential for weather patterns.
Case Study: Air Pollution and the Sky
Excessive air pollution can lead to smog, which obscures the sky and affects visibility. This can have negative effects on human health and the environment.
Statistics on the Sky
According to a study by NASA, the sky is constantly changing in terms of its color, cloud cover, and atmospheric conditions. This dynamism is a result of the Earth’s rotation and its position relative to the sun.
