Alkali metals

Some metals are very reactive that can be reactive with air. These metals are known as alkali metals. 


Comments

Post a Comment

Popular posts from this blog

How glaciers hold water

Image
  Glaciers and ice sheets hold about 69 percent of the world's freshwater. Glaciers are a big item when we talk about the world's water supply. Almost 10 percent of the world's land mass is currently covered with glaciers, mostly in places like Greenland and Antarctica. You can think of a glacier as a frozen river, and like rivers, they "flow" downhill, erode the landscape, and move water along in the Earth's water cycle.
Read more

Recent droughts in Europe were the worst in 2,100 years.

Image
  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!
Read more

Venus

Image
In our solar system, all planets are revolved in the anticlockwise direction.  But Venus is the only planet that revolved in the clockwise direction.
Read more

The best place in the world to see rainbows is in Hawaii.

Image
  If you're an avid rainbow gazer and want to get your fill of the beautiful phenomenon, look no further than the state of Hawaii. A study published by the  American Meteorological Society  in 2021 noted that the area's "mountains produce sharp gradients in clouds and rainfall, which are key to abundant rainbow sightings." Air pollution, pollen, and a large amount of cresting waves also help to put Hawaii at the top of the list when it comes to rainbow quantity and quality.
Read more

About Forces

Image
  There is a force that attracts all things which are living and non-living in the Universe, which is Gravitational force. The force that helps the body to float in a liquid is the Buyont force. The force which helps us to stop anything which helps us to write on  board, walk on a road,  which is Frictional force.
Read more

Oxygen in ocean

Image
  How much oxygen comes from the ocean? Scientists estimate that 50-80% of the oxygen production on Earth comes from the ocean. The majority of this production is from oceanic  plankton  — drifting plants, algae, and some bacteria that can photosynthesize. One particular species, Prochlorococcus, is the smallest photosynthetic organism on Earth. But  this little bacteria produces up to 20% of the oxygen in our entire biosphere . That’s a higher percentage than all of the tropical rainforests on land combined. It’s important to remember that although the ocean produces at least 50% of the oxygen on Earth, roughly the same amount is consumed by marine life. Like animals on land, marine animals use oxygen to breathe, and both plants and animals use oxygen for cellular respiration. Oxygen is also consumed when   dead plants and animals decay   in the ocean. Calculating the exact percentage of oxygen produced in the ocean is difficult because the amounts are con...
Read more

Maximum"Oxygen" producer in Earth.

Image
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.
Read more

The Smallest guitar

Image
  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 .
Read more