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When life did not exist, the stars and the sky represented the time and when there is a new year.

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Where was Antarctica 500 billion years?

500 billion years ago, planet Earth didn't exist. The Universe didn't even exist for such a long time; the age of the Universe is estimated at about 14 billion years.500 billion years ago, planet Earth didn't exist. The Universe didn't even exist for such a long time; the age of the Universe is estimated at about 14 billion years.500 billion years ago, planet Earth didn't exist. The Universe didn't even exist for such a long time; the age of the Universe is estimated at about 14 billion years.500 billion years ago, planet Earth didn't exist. The Universe didn't even exist for such a long time; the age of the Universe is estimated at about 14 billion years.


Did life exist 1.7 billion years ago?

Yes, life is believed to have existed 1.7 billion years ago based on fossil evidence of simple organisms like bacteria and algae. This period is known as the Mesoproterozoic era and marks an important time in Earth's history in terms of the evolution of early life forms.


What is clock of eras?

The Clock of eras is a graphic aid to help us visualize geologic time. It uses the analogy of a circular clock to represent the development of our planet in geologic time. One can see at a glance the relative time lengths of each major geologic era. The Clock represents geologic time on the Earth since its birth to the present, from the initial events that brought about the formation up to now. Each hour represents approximately 375 million years


Why do different time zones exist?

Different time zones exist to account for the Earth's rotation, which causes parts of the world to experience daylight at different times. By dividing the Earth into different time zones, we can coordinate schedules and ensure that activities are conducted during appropriate times of the day – for example, work hours during daylight.


Compared to the length of time for the first half-life of a sample of a radioactive isotope the length of time for the second half-life is?

The length of time for the second half-life is the same as the first half-life. Each half-life represents the time it takes for half of the radioactive atoms in a sample to decay. This process continues exponentially with each subsequent half-life.

Related Questions

When is the next time earth will change that life will not exist?

Life on Earth is tenacious and will certainly outlive humans but in about 4 billion years the Sun will expand and burn the earth to a crisp.


Why does the earth exist?

nobody really knows but hopefully mankind will figure that out soon.thanks for taking the time to read this and i hope you have a wonderfull life.


Which time segment represents the longest time of earth's history?

Pre-Cambrian Time Period


How long is earth going to exist?

maybe for along time


List two things that exist on earth that do not exist on Camazotz in the book a Wrinle in Time?

Love and individuality exist on Earth but are absent on Camazotz in the book "A Wrinkle in Time." On Camazotz, conformity and control dominate, suppressing emotions and uniqueness.


What do flora and fauna mean?

Flora = flowersFauna = animalsFloraFauna1. Flora is referred to as the total plant covered or vegetation of a region.Fauna means the species of animals, birds, reptiles etc.


What represents a pattern on Earth?

The time that the Sun rises and sets each day


What era represents a large span of time on earth in whose fossils very little variety exists?

The Archean era represents a large span of time on Earth in whose fossils very little variety exists.


Is there going to be alien life found in 2025?

There is no evidence to say weather or not we will find alien life in 2025 or at any time in the future, let alone set a date. It is still unknown if life exists beyond Earth, or how common it is if it does exist.


Is there life is exist on any other planets?

At this time we have no evidence of any extraterrestrial life.


What time is 180 degrees?

There are different possible answers. 180 degrees in he earth's orbit represents 6 months. 180 degrees in the moon's orbit represents around 14 days. 180 degrees in the earth's rotation, or around the earth's body represents 12 hours.


What is the longest time difference that can exist between two locations on Earth?

The longest time difference that can exist between two locations on Earth is 26 hours. This occurs when one location is at UTC14 and the other is at UTC-12.