The air would be different because it would contain less oxygen than the air we breathe today
The principle of uniformitarianism is the principle that the answers to the past can be found in the present, meaning that everything is uniform in how it works. Such as a volcano erupting today would be the same as it would have been a billion years ago. Or rain would fall the same was today as it would in the time of the dinosaurs. It can be summarized as,"the present is the key to the past".
Shiizzz
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.
That would be the element, "Nitrogen".
about 167 days
it would still be smoggy
About a billion bucks.
a billion.
In pounds (British) it would be about £175bn (the English or American billion issue doesn't arise as they cancel out)
around 10 billion rather then the 6-7 billion on earth today
1.3 billion
$1 billion buy today
1.2 billion dollars
Yes; without it, 7 billion people would starve.
About 100 billion I think! (100,000,000,000)
that doesn't make sense, so if you ask in a different way, maybe you would get an answer
he would not be known