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the Archean; and the Proterozoic.
- The Hadean period lasted approximately 800 million years, during which time Earth formed and was covered in molten lava.
- The Archean period started when Earth's crust hardened, giving us the first rock record, about 3.8 billion years ago. Earth's supercontinent and the first living organisms also developed during this period.
- The Proterozoic period included large glacial ice-sheets covering the supercontinent, and single-celled ocean-dwelling organisms are the only life so far.
- As oxygen built up in the atmosphere, it interacted with radiation from the sun and created ozone, about 2 billion years ago. This protective layer made life possible on land.
What else can I help you with?
If the earth had no atomisphere?
If the earth had no atmosphere then there would be no life on earth and you would not be there to ask this question!
Why is the sun important to seasons?
so the earth does not have another ice-age and kill all life on earth
Anylife form anywhere else?
Alien, is the term used to refer to life which does not originate from Earth. Though no hard evidence has ever been found to confirm presence of any life form outside earth.
What are the release dates for Intimate Strangers Unseen Life on Earth - 1999 Keepers of the Biosphere 1-2?
Intimate Strangers Unseen Life on Earth - 1999 Keepers of the Biosphere 1-2 was released on: USA: 1999
Why the moon able to support life as well as earth?
Life is supported on earth and not the sun or moon because, earth is the only planet with oxygen and the gasses people need to breathe. There is also water, light, and the earth is always a comfortable temperature. The moon and the sun are either to hot or to coldand don't have oxygen to breathe.
What are the two most climatic factors that affect life in an area?
Temperature & Precipitation
What are some climatic factors that may cause fertile lan to be barren?
Some climatic factors that may cause fertile land to be barren include drought, erosion, and flooding. If the land is not irrigated and infused with nutrients, it will quickly be unsuitable for plant life.
What are 3 important factors about why earth is suitable for sustaining life?
TemperatureOxygenWater
What three interconnected factors sustain life on earth?
Three interconnected factors that sustain life on Earth are the presence of liquid water, a suitable atmosphere with the right balance of gases for respiration, and the Earth's distance from the sun to maintain a habitable temperature range.
What three interconnected factors does life on earth depend on?
Life on Earth depends on the interactions between the atmosphere, biosphere, and hydrosphere. These interconnected factors play a crucial role in supporting the diverse forms of life on our planet by providing essential elements, nutrients, and sustenance. The balance and health of these interconnected systems are essential for the well-being of life on Earth.
How did Earth end up looking the way it is?
Earth's current appearance, including its landforms, oceans, and atmosphere, is the result of billions of years of geological and climatic processes. Factors such as plate tectonics, erosion, volcanic activity, and changes in climate have all played a role in shaping the planet's surface. Additionally, the presence of life has had a significant impact on Earth's environment and ecosystems.
What factor allow life to exist on earth?
some factors that allow life to existon earth is that earths atmosphere is just right.
List at least two factors that make life possible on Earth?
The presence of liquid water and the Earth's atmosphere, which provides protection from harmful solar radiation and maintains a stable climate, are two key factors that make life possible on Earth.
Which climatic condition is decreasing the life span of asphalt shingle roof?
Sunrise.
Factors that threatens earth's capacity to sustain life?
1- Global Warming 2- Pollution
Climatic regions of pakistam?
Climate region of pakistan and how it effect the life styleof the people
Life on earth depends on three interconnected factors?
The three interconnected factors that support life on Earth are the presence of liquid water, a stable atmosphere containing oxygen, and the presence of a steady source of energy from the sun. These factors enable the existence of various organisms and ecosystems that make up the biosphere on our planet. Any disruption to these factors can have profound effects on the sustainability of life on Earth.
