Liquids
Solids
Gases
Everything on earth is made of these three elements.
Microorganisms such as bacteria and archaea have existed on Earth for at least 3 billion years. These simple, single-celled organisms are some of the earliest forms of life on our planet.
3 to 4 million years ago
The kingdom that has existed for at least 3 billion years is the Kingdom Bacteria. Bacteria are single-celled organisms that have been on Earth for billions of years and are among the oldest forms of life on our planet.
The first model was released in November 2006, but it existed in the lab as early as January 2005 in a different experimental form
Water has been wetting things for as long as water has existed on Earth, which is estimated to be around 4.6 billion years. Water has the ability to wet objects because of its molecular structure and its ability to form hydrogen bonds with other molecules.
Early Edition - 1996 Just One of Those Things 3-14 was released on: USA: 6 February 1999
coal, metal and gemstones are the main 3 things found in the Earth's crust.
Only earth has these three things:human lifeanimal lifeplant life
water air heat
Gravity, orbit, and Chuck Norris.
Because Earth is the only planet with oxygen, water and food. And living creatures need these things to survive. We would die in 3 seconds if we don't have air; 3 days if there is no water; and 3 weeks if there is no food.
There are many things people can do to improve the Earth. For instance, people can recycle, pick up garbage and litter, and conserve water whenever possible.