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How much time is 4 percent of the time represented by earths oldest known rocks?
Earth's oldest known rocks are about 4 billion years old. 4 percent of 4 billion years is 160 million years.
What were earths climates like during the tertiary period?
During the Tertiary period, which lasted from about 66 million to 2.6 million years ago, Earth's climate was generally warmer and more humid than today. This era saw the proliferation of forests and diverse ecosystems, with tropical conditions extending to higher latitudes. As the Tertiary progressed, the climate gradually cooled, leading to the development of grasslands and the eventual onset of ice ages toward the end of the period. Overall, the Tertiary was marked by significant climatic shifts that shaped the evolution of flora and fauna.
What was the climate like 79 million years ago?
79 million years ago, during the Late Cretaceous period, the Earth was much warmer than it is today. The climate was generally hot and humid, with high levels of carbon dioxide in the atmosphere contributing to a greenhouse effect. There were no polar ice caps, and sea levels were much higher than they are now.
What is the length in millions of years of the Tertiary period?
The answer is 63.2 million years. Since the Tertiary Period began 65 million years ago and then stoped 1.8 million years ago you have to subtract the 1.8 million from 65 million to get the actual lenght of time.
Why the climate of most of the Australian continent has changed from cold to hot and dry during the past 65 million years?
The shift in climate of Australia from cold to hot and dry over the past 65 million years can be attributed to changes in global climate patterns, tectonic movements, and ocean circulation. Factors such as the Australia's movement towards the equator, changes in the positioning of landmasses, and variations in atmospheric greenhouse gases have all played a role in shaping the current arid conditions of the continent.
What is the earths revolution earth years?
The sun revolves around the galactic center in about 220 million years, give or take 20 million years or so.
How many seconds in 160000 years?
160,000 years = 5.04910816 × 1012 seconds.
What is the oldest human tribe?
the oldest tribe is Africa with the years of 160000
What was the climate on earth 410 million years ago?
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What happened between 8-5 million years ago?
due to climate changes :)
How much time is 4 percent of the time represented by earths oldest known rocks?
Earth's oldest known rocks are about 4 billion years old. 4 percent of 4 billion years is 160 million years.
How many planet earths makes a sun?
The sun could fit over 1.3 million earths inside of it. Wow... see https://fretzreview.wikispaces.com/Milky+Way,+Universe,+Light+Years
How long eras last?
The Hadean Eon lasted from Earths formation about 4.5762 billion years ago until 4 billion years ago, some 576.2 million years.
For how long has earth's climate been changing one hundred years ago or one million years or one billion years or five billion years?
1000 years
How long ago did the earths surface cool down?
most people say 20,000 million years ago, but thats impossible!
What caused the death of so many animals 12 million years ago?
Obviously - Climate change
How much of the earths history does the pre-Cambrian era account for?
The Precambrian Super-Eon lasted from Earths creation 4.54 billion years ago until the Cambrian Period 542 million years ago. Some 3.998 billion years. This accounts for about 88% of Earth's history.
