Water is an essential part of our planet. Without water, no life would be possible. We all
Learn about the water formula and its cycle in nature. We have also seen how much water there is in the oceans on maps, but... do we know how water on our planet?
One of the most known theories says that water
Arrive on our planet because asteroids and comets have water in them in the form of ice. Back in the Pre-Cambrian era, thousands
of meteorites hit the surface of Earth, causing great destruction. Meanwhile the water stayed on our surface and help create life.
Another theory claims that water existed on Earth at the beginning.
Scientists have discovered some asteroids as old as our planet and found evidence of water in them. According to some experts, water could have appeared before we even appear .
• Find three or four words from the passage that you did not understand. Write them and find their meaning in a dictionary.
Respuestas
Water is an essential part of our planet. Without water, no life would be possible. We all learn
about the water formula and its cycle in nature. We have also seen how much water there is in the oceans on maps,
but... do we know how water appear on our planet?
One of the most known theories says that water arrive in our planet because asteroids and
comets have water in them in the form of ice. In the Pre-Cambrian era, thousands of meteorites
hit the surface of Earth, causing great destruction. The water stayed on our surface and
help create life.
Another theory claims that water existed on Earth from the beginning. Scientists have discovered some asteroids as
old as our planet and found evidence of water in them. According to some experts, water could have appeared
before we even think.
Si no me equivoco creo que este seria el orden correcto, las que están en negrilla son las palabras clave.
Espero haberte ayudado. :)
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