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Earth formed around 4.54 billion years ago through accretion from the solar nebula. The atmosphere did not contain oxygen and would have been toxic to most living things, including humans.

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What was Earths Age According to Geologists?

Earth is estimated to be around 4.5 billion years old, based on radiometric dating of meteorites and rocks from Earth's surface. Geologists have used various dating methods to determine the age of Earth, including studying the decay of radioactive isotopes in rocks and minerals.


Is krakatau still active?

Yes, Krakatau (also known as Krakatoa) is still an active volcano located in Indonesia. The most recent significant eruption occurred in 2018, with ongoing volcanic activity. Monitoring and alert systems are in place to keep track of its volcanic behavior.


What is the observable universe?

The observable Universe is the part of the Universe we can see from Earth because the light from all the objects in it has had enough time to reach us. Light from outside the observable Universe has yet to reach Earth. The reason we can only see part of the Universe is because of the limited speed of light, and the expansion of the Universe, which is faster than that speed. According to Einstein, nothing in the Universe can move faster than light, but nothing stops the expansion of space from moving faster than light. This results in a large part of the Universe being completely invisible to us.


Dominant oganisms in the Cenozoic era?

The Cenozoic Era started 65.5 million years ago and still is the current era. It is widely recognised as the era of the mammal but this is a very simplistic view. For several million years after the KT-Event the most dominant animals where the Terror Birds. In South America this dominance only ended about 2 million years ago soon after it joined with North America and species of saber toothed cats took over. From as long ago as 45 million years ago mammals such as Andrewsarchus on land and Basilosaurus in the oceans had come to dominate most environments on Earth. One major exception to mammalian domination is flying animals. The sky during the Cenozoic has been mainly dominated by the decedents of dinosaurs, the birds. Other smaller environments such as the everglades in southern Florida the dominant animals are the Reptilian Alligators. One mammal however has become the most dominant species on earth, Human Beings. Starting from about 200,000 years we started to slowly dominate Africa and about 70,000 years ago we started to colonise the rest of the planet. We now are the most dominant species in every environment.


How old was Augustus when he was adopted?

Augustus was 32 years old when he was adopted by Julius Caesar in 45 BC.