Well firstly they noticed that if the sun did not produce energy via fusion, it would be impossible based on the amount of mass the sun has, which is not enough. Sometime around the first half of the 20th century.
the period that scientist believe HORTICULTURE began was in the LATE ARCHAIC PERIOD
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In order for a scientist to solve a problem or learn more about a phenomenon, they must first see it in order to know that it exists. Also, observations allow scientists to make educated guesses, called hypotheses, to try and explain what is causing a phenomenon.
Well they track down were the bodies or what ever they are working on down. After that they experiment on the bodies to see who they were and what they did on there life. Next they experiment again to see who killed them and how
That is false
Photosynthesis produces water and oxygen plus energy. It uses carbon dioxide and water to begin the process.
Babies typically begin to understand mirrors at around 18 months of age.
the period that scientist believe HORTICULTURE began was in the LATE ARCHAIC PERIOD
Zen is not something to "understand." It is something to do.
· Alexander Graham Bell
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Atomic energy .
radiant energy
Babies typically begin to understand and respond to their own name around 6 to 9 months of age.
fhysic energy
Scientist say the earth began around 4.5 billion years ago.
The first dinosaur to be discovered was iguanadon, which was first described in 1881.