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changes in Earth's orbit and the tilt of its axis
It moved because of tectonics plates. Even earthquakes can move the Earth's crust!
Geologists and other related Earth scientists have estimated the age of the Earth to be approximately 4.65 Billion years old based on a wide variety of scientific experiments and data.
4.6 billion years im pretty sure
Because you study earth and science and astronomy is study of stars and planets. So I think astronomers are a scientist of earth dont you!:)
Because they study many planets and their geography and atmosphere, in Earth Science you study the geology of Earth just like Astronomers study geology of other planets.
it is earth
People thought the earth was in the center of the solar system
yes
4.6 billion years
There's a few different theories on this, but today, most astronomers feel that very early in earth's history - when it was still essentially a ball of molten rock - Earth was impacted by another huge object, perhaps half the size of earth. This blasted out a huge chunk that fell into orbit around the earth, and eventually became the moon.
Astronomy is one of the space sciences, but it is often combined academically, into the category of Earth and Space sciences, both of which are involved in large scale observations about the universe in which we live. Astronomers study planets in general (among other celestial objects), and the Earth is a planet.
iron
From the oceans
about 8.7 million
Scientists,Architects,Engineers,Tank thinkers,revolutionaries,computer techs,rocket scientists, artists,designers,TV show creators, Movie creators,astronomers,Historians. and thats all i can think of