Buildup of carbon deposits led to surplus oxygen in the atmosphere. Oxygen built up in the Mississippian period and by the end of the carboniferous period, 35% of the atmosphere was oxygen.
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Continents are starting to drift toward the 1 continent pangea. North America finally came up from being underwater for a while. And North America and Europe are tropically warm
it was flat and dry with limestone
the surface on earth is like,,,,,,,,,,,,,,,,:] i ambored(:and Kristen was here.*iloveparker
The surface of the Earth can be changed by resulting from outer space, like from a meteor strike.
On the Earth there is life basically such as organisms like us and animals.
During the Pennsylvanian time period, there was a lot of volcanic activity and these constituted a lot of rock formation. Volcanic ashes also settled on the earth's surface and buried some trees.
it was alphabet soup
flat and even
The Mississippian period was a time of shallow seas that covered large amounts of land. The temperature across the globe at this time was warm and humid and by the end of the period, temperatures began to cool off.
During the Tertiary Period, the surface of the earth looked much like it does today. It was quite warm with periods of cold much like today.
it looked hot and spicy
During the Tertiary Period, the surface of the earth looked much like it does today. It was quite warm with periods of cold much like today.
it was flat and dry with limestone
it was one massive island surrounded by water
The Earth's surface was covered mostly with water. There was a very small part of land that was dry and above water.
the surface on earth is like,,,,,,,,,,,,,,,,:] i ambored(:and Kristen was here.*iloveparker
Of all the planets the surface of Mars is closest to being like Earth.
Magma is under the surface of Earth's crust. Rocks on earth's surface are well ... on Earth's surface. Magma is also molten rock, not solid rock like the rocks on earth's surface.