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What else can I help you with?
What is the percentage of oxygen in earths air?
The Earth's atmosphere is composed of about 21% oxygen. This level is important for supporting life on our planet.
What is the record of earths history called?
The record of Earth's history is called the geological timescale. It is a classification system that organizes Earth's history into different time intervals based on significant geological events and changes in life forms.
Earths water land and atmosphere where life exists is known as?
Biosphere.
A trace of prehistoric life preserved in the earths crust?
Fossils are physical evidence of prehistoric life that is preserved in the Earth's crust. These remnants can include the remains of plants, animals, and other organisms that lived long ago, providing valuable insights into the history of life on our planet. The study of fossils helps scientists understand the evolution and biodiversity of life over millions of years.
What is a table that divides earths history into time periods?
The table you are referring to is likely the Geologic Time Scale. It divides Earth's history into different time periods based on significant events and changes in the planet's geology, climate, and life forms. These time periods are typically grouped into eons, eras, periods, epochs, and ages.
Why are fossils important to earths history as a planet?
Fossils aren't but the life that made them is.
Have the number and type of life forms remained fairly constant throughout earths history?
Ya
According to its name the archaeozoic era of earths history was characterized by what type of life form?
unicellular organisms are earliest forms of life
Why Describe how fossils can provide evidence of how environmental conditions and life have changed during earths history?
hi
What are the prehistoric eras?
There are so far 4 Eras in the earths history. the one that started the beginning if the earths history: Precambrian Time. The one after that was the Paleozoic Era, which means "ancient life." next was mesozoic which means "middle life" the one we are in is called the Cenozoic Era which means" recent life." * All Eras ended with a mass extinction.
What is the percentage of oxygen in earths air?
The Earth's atmosphere is composed of about 21% oxygen. This level is important for supporting life on our planet.
What percentage of time has life existed on earth ( round to the nearest whole number?
Life on Earth has existed for approximately 3.5 billion years. Given that the Earth is about 4.5 billion years old, life has been present for around 78% of Earth's history. Rounding to the nearest whole number, life has existed on Earth for about 78% of the time.
What is the record of earths history called?
The record of Earth's history is called the geological timescale. It is a classification system that organizes Earth's history into different time intervals based on significant geological events and changes in life forms.
Was oxygen present in early earths atmosphere what elements were present?
oxogen: unkown because of unknown life. elements: everything but pure potassium because that was not made till 1900's because it acts with air
Explain what effects karma has on the present life and the future life according to Hinduism?
This is my essay question in my World History class..? word for word
How do characters in A Christmas Carol solve the problem?
Each present a part in Scrooges history, past present and future that allows him to re-evaluate his life and hehaviours
Drawing lessons from history to see how past events affect life today is an example of what?
Connecting the past and present
