Human civilization has existed for approximately 10,000 years, which is a tiny fraction of Earth's history, estimated at about 4.5 billion years. This means that human civilization has been present for roughly 0.0002% of Earth's total history. In the context of the entire timeline of life on Earth, which spans around 3.5 billion years, human civilization still accounts for only about 0.0003% of that time.
The oldest species of plant still in existence is believed to be the Horsetail plant (Equisetum). Fossil records suggest that this plant has been around for over 300 million years and has remained relatively unchanged throughout its evolutionary history.
Humans, specifically Homo sapiens, have been on Earth for approximately 300,000 years. In the context of Earth's history, which spans about 4.5 billion years, this is a tiny fraction—less than 0.01% of the planet's existence. Thus, the vast majority of Earth’s history occurred long before humans appeared. This highlights the relatively brief duration of human existence compared to the age of the Earth.
The deepest scientist have been able to study earths interior depth is 12,262 meters
The existence of wormholes has not been confirmed.
.003 %
75%
Life has been present on Earth for approximately 85-90% of its 4.6 billion-year history, with evidence of microbial life dating back around 3.5 billion years. This indicates that microbial life existed on Earth for most of its existence.
Technically, 95 percent of Earth's living things (besides plants) are invertebrates, but the percentage of animals has not yet been discovered.
They didn't necessarily 'support' the existence, though sightings of Bigfoot has been handed down generations.
Define "technologically active". If you mean "can't make any weapon more technologically advanced than a sword", then we didn't really become massively technologically active until about the 1300s. So about 0.4% of human history. Or less.
The major source of history is literature. Literature has been in existence since time immemorial and this may serve the purpose of a great source of history.
Countless times throughout the history of human existence on this world.
Throughout history, philosophers and scientists have been intrigued by questions about existence, such as: What is the nature of reality? How did the universe come into being? Do we have free will or are our actions predetermined? Is there a purpose or meaning to life? These questions continue to spark debate and exploration in the quest to understand the nature of existence.
As long as cows have been in existence, or the whole Bos primigenius species and subspecies have been in existence.
divide the smaller number by the bigger number to get a percentage: age of the earth is 4.54×10^9 give or take a year. that's basically: 4,540,000,000years assuming humans existed for 160,000years 160,000/4,540,000,000=3.52422907×10^-5 basically 0.00003 to turn that into a percentage you move the decimal point to the right two space: .003% THUS: human history accounts for only .003% of earth's entire history.
The question requires more context. How many millions of years ago? There have been a number of near extinction level incidents over the past 4 billion years of the earths existence; each due to different reasons and with different outcomes to the plant and animal life that prevailed at the time.