Alkali metals
Some metals are very reactive that can be reactive with air. These metals are known as alkali metals.
Bones in Human
There are around 206 bones in the human body and approx 300 bones in the newborn child.
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Oxygen in ocean
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Maximum"Oxygen" producer in Earth.
Our atmosphere is made up of roughly 78 per cent nitrogen and 21 per cent oxygen, with various other gases present in small amounts. The vast majority of living organisms on Earth need oxygen to survive, converting it into carbon dioxide as they breathe. Thankfully, plants continually replenish our planet’s oxygen levels through photosynthesis. During this process, carbon dioxide and water are converted into energy, releasing oxygen as a by-product. Covering 5.5 million square kilometres (2.1 million square miles), the Amazon rainforest cycles a significant proportion of the Earth’s oxygen, absorbing large quantities of carbon dioxide at the same time.
Recent droughts in Europe were the worst in 2,100 years.
Europe has been experiencing serious dry spells and extreme heat since 2015, which has caused major droughts. Research done led by the University of Cambridge (and published on the National Oceanic and Atmospheric Administration website) looked at isotopes in the rings of old European Oak trees in Central Europe which formed over thousands of years to try to pin down the cause. They discovered that the dry spells are a "result of human-caused climate change and associated shifts in the jet stream," according to EurekAlert!
The Smallest guitar
The smallest guitar in the world is of the size of a red blood cell The world's smallest guitar is of the size of a red blood cell. It was developed by scientists from Cornell University.US The nano guitar has six strings each of 50 nano meters wide.When plucked by an atomic force microscope ,the strings would resonate.But it will at be inaudible frequencies. The first of its kind was made in Cornell University in 1997. The nano guitar was made from crystalline silicon.It is about 10 micrometers long .It can be viewed with the help of an electron microscope .
Carbon Cycle
What is the carbon cycle? Carbon is the foundation of all life on Earth, required to form complex molecules like proteins and DNA. This element is also found in our atmosphere in the form of carbon dioxide (CO2). Carbon helps to regulate the Earth’s temperature, makes all life possible, is a key ingredient in the food that sustains us, and provides a major source of the energy to fuel our global economy. The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. Since our planet and its atmosphere form a closed environment, the amount of carbon in this system does not change. Where the carbon is located — in the atmosphere or on Earth — is constantly in flux. On Earth, most carbon is stored in rocks and sediments, while the rest is located in the ocean, atmosphere, and in living organisms. These are the reservoirs, or sinks, through which carbon cycles. Carbon is released back into the atmosp...
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