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the release of sulfur and other harmful gases lead to a toxic atmosphere for most life on earth with the largest extinction ever seen with 99% of all life forms believed to been extinct. the ash clouds surrounding the earth reflected light from the sun away from earth causing the earths tempter to decrease leading to the 'snowball earth'
What else can I help you with?
Is there any volcanoes in northern Ireland?
There was. Ireland is a very safe country now. One of the most visited proof of volcanic activity is "The Giants Causeway". When lava solidifies, it forms hexagon shapes. This is why it looks exactly how it does.
What major event happened during Precambrian time?
During Precambrian time, one of the major events was the formation of the Earth's first stable crust and the development of the atmosphere and oceans. This era also witnessed the emergence of early life forms, primarily simple single-celled organisms like bacteria and archaea. The appearance of photosynthetic cyanobacteria around 3 billion years ago played a crucial role in oxygenating the atmosphere, leading to the Great Oxygenation Event. These developments laid the groundwork for more complex life forms that would emerge in later geological periods.
What are interesting things in the Precambrian time period?
Some interesting things about the Precambrian time period include: The formation of the Earth's oldest known rocks, which date back to about 4 billion years ago. The development of early life forms such as bacteria and blue-green algae, which were responsible for the oxygenation of the Earth's atmosphere. The occurrence of significant geological events, such as the formation of supercontinents (e.g., Rodinia) and the occurrence of multiple global ice ages.
Why do you not have many fossil records from the Precambrian era?
Most life-forms were single-celled, with no hard parts to fossilize.
How do land forms and bodies of water affect peoples way of life?
Land forms and bodies of water profoundly affect the development of human societies by determine food and water source, opportunities for construction, weather, and natural threats. They also determine how close other societies are and how easily a community can travel to and trade with other societies.
What does a volcanic crater form?
It forms by volcanic activity in the vent of a volcano.
What forms the Aleutian Islands?
Volcanic activity.
Key events for the precambrian which makes up about 85 percent of the earths history are?
Cooling and formation of continental plates, primitive photosynthesis, free oxygen, primordial life forms, and formation of the Earth with widespread volcanic activity and meteorite bombardment.
What did it look like in the Precambrian age?
During the Precambrian Age, the Earth's surface looked very different from what it looks like today. It was dominated by volcanic activity, abundant oceans, and the first signs of life in the form of simple, single-celled organisms. The atmosphere had high levels of carbon dioxide and there were no plants, animals, or complex life forms as we know them today.
What era featured the longest periods with no life forms on Earth.?
Precambrian
What is the most significant difference between the precambrian and paleozoic life forms?
The Precambrian life forms were less developed than the Paleozoic life forms.
What is the volcanic activity in New Zealand?
in the North Island most geographical land forms are formed by volcanoes
How did the iguassu falls form?
The falls were forms by volcanic activity approximately 100 million years ago.
What did the earths surface look like during the precambrian time period?
During the Precambrian time period, the Earth's surface was dominated by rugged terrains and volcanic activity. There were no complex life forms, and the atmosphere did not contain much oxygen. Land masses were forming and breaking apart, leading to the creation of early continents.
How do the Ayelu and Likaiu volcanoes fit into the pattern you have observed?
The Ayelu and Likaiu volcanoes are part of the chain of volcanic activity that forms the Pacific Ring of Fire. These volcanoes are located along the boundaries of tectonic plates where intense geologic activity occurs, leading to frequent volcanic eruptions. Their presence contributes to the overall pattern of volcanic activity observed in this region.
What forms over hot spots?
Hot spots are areas of intense volcanic activity where magma rises from the mantle, creating a localized area of volcanic activity. As the magma rises, it can create volcanic eruptions, leading to the formation of lava flows, cinder cones, and volcanic islands over time.
When an oceanic plate is pushed under a continental plate resulting in volcanic activity this type of boundary forms.?
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