Though it pains me to admit it, the American definition of a billion - ie; one thousand million or 1,000,000,000 - is considered to be the 'correct' definition, as the British definition - ie; one million million or 1,000,000,000,000 - is not in line with our ten-based counting system.
As such, scientists tend to favour the American definition, and it can be assumed that whenever you read the word billion in a scientific or technical text, it refers to that one.
Earth formed about 4.6 billion years ago.
Current estimate of the Earth's age is about 4.5 billion years. The total age of the Universe (Big bang until now) is about 15 billion years.
One billion years ago there were no humans on earth, so 'they' didn't know the distance from the moon to the earth.
Although one can argue whether or not Earth is actually 'alive', science shows that Earth is 4.6 billion years old.
The Earth is 4.567 billion years old. The moon is thought to be a little younger at 4 billion years, since it is believed to be a spin off of the Earth's formation.
Earth did not exist 700 billion years ago, nor did the universe. Earth is about 4.6 billion years old.
No, the earth wasn't around 7 billion years ago. Earth formed about 4.6 billion years ago.
No, earth will not disintegrate in 2 billion years. We have about 5 billion years before the sun expands.
== == The age of the Earth is roughly 4.6 billion years.
It is just a fact that earth is 4.6 billion years old.
The Earth is currently 4.5 billion years, so in approximately 2.5 billion years time.
No. The universe itself is about 13.7 billion years old. Earth is between 4.5 and 4.6 billion years old.
The Earth is about 4.5 billion years old. Life appeared on Earth about 3.5 billion years ago. The Earth would have been about 1 billion years old at that 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.
No. Earth will be scorched and possibly consume by the sun in about 5 billion years.
Earth formed about 4.6 billion years ago.
Depends how roughly you want it. It is generally accepted in the science community that the Earth is 4.54 billion years old.