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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'
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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 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.
What forms the center of North Island?
The various features of the Taupo Volcanic Zone are at the centre of the North Island. These include Lake Taupo, and the mountains of the Tongariro National Park. This was the fourth National Park formed in the World, in 1886.
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.
What volcanic features forms as a result of hydrothermal activity associated with hot volcanic rocks and Magmas?
fumaroles
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.
Rock that forms as a result of volcanic activity at or near the surface of the earth?
Igneous rock.
What is the most significant difference between precambrian life forms and paleozoic life forms?
The Precambrian life forms were less developed than the Paleozoic life forms.
What forms the islands of Hawaii?
The island of Hawaii was formed by volcanic activity over a period of thousands of years.
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.
How did the iguassu falls form?
The falls were forms by volcanic activity approximately 100 million years ago.
What is the volcanic activity in New Zealand?
in the North Island most geographical land forms are formed by volcanoes
When an oceanic plate is pushed under a continental plate resulting in volcanic activity this type of boundary forms?
booff
