Earth accumulated from an assortment of rocks, icy bodies, dust and general rubble, the general ejecta from a supernova, combined with general space junk. When it became sufficiently large, compression due to gravitydeveloped, Among these were of course some radioactive ones, and the core became warm due to the radioactivity and gravitational pressure, eventually melting
and the heavier elements sank to the core.
Once melting was well under way, molten material ejected to the surface as volcanoes, emitting methane and CO2. There was little oxygen present at this stage.
The surface was not completely red hot as we know from radiometric dating that there were some zircon crystals present at this time.
No, rocks that are 3.5 billion years were not present when earth was first formed. Earth formed about 4.6 billion years ago.
snotites
Snotites
Three quarters of dry land on Earth is covered by sedimentary rock.
Scientists believe that when Earth was first formed, its crust was made of molten rock that eventually cooled and solidified into igneous rock. Over time, these rocks were subjected to heat and pressure, leading to the formation of metamorphic rocks, which make up a significant portion of Earth's crust today.
erupting volcanoes is the correct answer for A+
liquid water in oceans with deep sea hydrothermal vents a+ erupting volcanoes and poisonous gases
When the Earth first formed, a day was about 6 hours long.
No, rocks that are 3.5 billion years were not present when earth was first formed. Earth formed about 4.6 billion years ago.
Earth quakes would have first been around when the planet was being formed. So when was the earth first formed?
we can not be sure
The rocks were similar to rocks formed by volcanoes on Earth, suggesting that vast oceans of molten lava once covered the moon's surface.
snotites
The first rock on Earth was formed from the cooling and solidification of magma on the surface.
The first rock on Earth was formed from the cooling and solidification of magma on the surface.
The earth formed and let of carbon, oxygen, and other gases. Those gases collected and formed the atmosphere. When the Earth cooled, some hydrogen and oxygen bonded to make water vapor. Soon we had lakes, then oceans, and then life.
The sun formed first. The moon was not formed until around after the formation of proto-Earth.