EARTH IS
LIKELY FIVE MILLION YEARS OLD.
sections of planet earth varying from the spherical earth to the Grand Canyon in Arizona,U.S., the Prairies grasslandsand the Pampas of Argentina
The News
office Desk of the E.N.M..Paedia Express Multimedia Group of Lagos,Nigeria ,now
hears that the earth as a planet is likely to be around five million years old
in age.
According to
the Oxford African Encyclopaedia ,the distance between the earth and The Sun
which is about 150 million kilometres and as such will be more than 2.5 kilometer
away
sources in wikipeadi now says that Earth has
the following status: The oldest material found in the Solar
System is dated to 4.5672±0.0006 billion
years ago (Bya).[53]
By 4.54±0.04 Bya[54]
the primordial Earth had formed. The bodies in the Solar System formed and
evolved with the Sun. In theory, a solar
nebula partitions a volume out of a molecular
cloud by gravitational collapse, which begins to spin and flatten into a circumstellar disk, and then the planets grow
out of that disk with the Sun. A nebula contains gas, ice grains, and dust
(including primordial nuclides). According to nebular
theory, planetesimals formed by accretion, with the primordial Earth
taking 10–20 million
years (Mys) to form.[55]
A subject of research is the formation of the Moon, some 4.53 Bya.[56] A leading hypothesis is that it was formed by accretion from material loosed from Earth after a Mars-sized object, named Theia, hit Earth.[57] In this view, the mass of Theia was approximately 10 percent of Earth,[58] it hit Earth with a glancing blow and some of its mass merged with Earth.[59] Between approximately 4.1 and 3.8 Bya, numerous asteroid impacts during the Late Heavy Bombardment caused significant changes to the greater surface environment of the Moon and, by inference, to that of Earth.
No comments:
Post a Comment