GENERAL KNOWLEDGE

Detailed explanation-1: -Earth is estimated to be 4.54 billion years old, plus or minus about 50 million years. Scientists have scoured the Earth searching for the oldest rocks to radiometrically date.

Detailed explanation-2: -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-3: -In about one billion years, the solar luminosity will be 10% higher, causing the atmosphere to become a “moist greenhouse", resulting in a runaway evaporation of the oceans.