GEOLOGY

Detailed explanation-1: -Based on the very old zircon rock from Australia we know that the Earth is at least 4.374 billion years old. But it could certainly be older. Scientists tend to agree that our little planet is around 4.54 billion years old-give or take a few hundred million.

Detailed explanation-2: -By dating the rocks in Earth’s ever-changing crust, as well as the rocks in Earth’s neighbors, such as the moon and visiting meteorites, scientists have calculated that Earth is 4.54 billion years old, with an error range of 50 million years.

Detailed explanation-3: -Scientists now know the Earth is actually 4.54 billion years old, an age built on many lines of evidence from the geologic record.

Detailed explanation-4: -It is widely accepted by both geologists and astronomers that Earth is roughly 4.6 billion years old. This age has been obtained from the isotopic analysis of many meteorites as well as of soil and rock samples from the Moon by such dating methods as rubidium–strontium and uranium–lead.

Detailed explanation-5: -The universe grew and cooled and eventually stars and galaxies formed. The Earth was formed about 4.6 billion years ago, that’s 4, 600, 000, 000 years ago. It was formed by collisions of particles in a large cloud of material. Slowly gravity gathered together all these particles of dust and gas and formed larger clumps.