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.
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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,
What does the Big 4 mean? Big 4 usually refers to the four largest accounting and auditing firms: PricewaterhouseCoopers, Deloitte Touche Tohmatsu, Ernst & Young, and KPMG. These certified public accounting
How many types of bones are there? There are five types of bones in the human body: long, short, flat, irregular, and sesamoid. #askmenow
How does a plant loses water? Plants lose gallons of water every day through the process of transpiration, the evaporation of water from plants primarily through pores in their leaves. Up
What animal sleeps with one eye open? For dolphins, this is an easy task. They can turn off half their brain and close one eye, allowing them to be partly asleep
What was the first metal used by man? Over 4,000 years ago, when it was discovered that minerals could be melted, curiosity led man to combine melted metals (alloys). By accident
What does CT stand for in medical terms? CT, or CAT as they're pronounced, stands for "computerized axial tomography." In a CT scan, the patient lies on a table that slides
What animal has four stomachs? Ruminating mammals include cattle, goats, sheep, giraffes, bison, moose, elk, yaks, water buffalo, deer, camels, alpacas, llamas, and antelope. Ruminants differ from non-ruminants (called monogastrics) because
What is tramadol? Tramadol may be a narcotic-like pain reliever. Tramadol is employed to treat moderate to severe pain in adults. The extended-release sort of tramadol is for around-the-clock treatment of pain. The
Which planet has the fastest rotation? Jupiter is the fastest spinning planet in our Solar System rotating on average once in just under 10 hours. That is very fast especially considering
How long is a kangaroo baby when it is born? The young kangaroo, or joey, is born alive at a very immature stage(around 36 days of pregnancy) when it is only
Are birds warm blooded or cold blooded? Mammals and birds are warm-blooded, which means that they can make their own body heat even when it is cold outside. Whether it is
Is smoke a state of matter? Smoke is particulate material suspended in a gas (air). The particulates may be very finely divided solids or aerosol particles composed of liquid materials. Smoke
