Why Sky is Blue?
Sunlight reaches Earth's atmosphere and is scattered in all directions by all the gases and particles in the air. Blue light is scattered more than the other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.
What makes a red sunset? As the sun gets lower in the sky, its light is passing through more of the atmosphere to reach you. Even more of the blue light
What is the 11 year solar cycle? The solar cycle or solar magnetic activity cycle is the nearly periodic 11-year change in the Sun's activity (including changes in the levels of
What is an Ice Age? An ice age is a long period of reduction in the temperature of the Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice
Which is the longest river in the world? The Nile is credited as the longest river in the world. Its main source is Lake Victoria in east central Africa. From
What is considered to be a Dwarf Planet? According to the definition adopted by the IAU in 2006, a dwarf planet is, “a celestial body orbiting a star that is
What is the largest Organ of Human body? We have been told, since time immemorial, that the liver was the biggest internal organ in the human body, making the skin
Which Country Has the Most Islands? Estimates show that approximately 700 million people on earth live on islands. Due to their isolation, islands usually offer a unique environment as they tend
What is Crust of Earth? In geology, a crust is the outermost layer of a planet. The crust of the Earth is composed of a great variety of igneous, metamorphic,
