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For the past twenty million years the climate changed in response to orbital variations known as "Milankovitch Cycles." This entailed a series of ice ages. These ice ages may have been precipitated by what is known as the "Azolla Event," which began about 15 million years after the end of the Cretaceous.
Azolla is a freshwater fern which sank into the icy depths of the Arctic ocean. Over a fairly short period of a few hundred thousand years billions of tons of atmospheric carbon was sequestered onto the sea floor by the growth and death of this fern. The climate cooled, and thus began the last series of ice ages.
What else can I help you with?
What is the past tense of change?
The past tense of change is changed.
What principle states that geologic processes that change earth today also changed Earth in the past?
Uniformitarianism... or however u spell it.hope this helped :)
What principle states that geologic processes that changes earth today also changed earth in the past?
Uniformitarianism... or however u spell it.hope this helped :)
What principle states that the geologic process that change earth today also changed earth in the past?
Uniformitarianism... or however u spell it.hope this helped :)
What is the past participle of the word change?
The past participle is changed.
How many times has earth's magnetic polarity changed?
The Earth's magnetic polarity has changed multiple times throughout its history. These changes, known as geomagnetic reversals, have occurred hundreds of times over the past 100 million years.
How do scientist discover information about the earth's past?
Scientists discover information about Earth's past by studying rock layers, fossils, ice cores, and sediment cores. These materials provide evidence of past environments, geological processes, and climate change. By analyzing these samples, scientists can reconstruct Earth's history and understand how it has changed over millions of years.
What is the area of earth science that examines the physical and biological changes that have occurred in earth's past is called?
The area of earth science that examines the physical and biological changes that have occurred in Earth's past is called paleontology. It focuses on studying fossilized remains of plants and animals to understand the history of life on our planet and how it has changed over time.
Has the Earth's moon's surface changed in the past three billion years?
Yes, the Earth's moon's surface has changed over the past three billion years due to impacts from asteroids and comets. These impacts have created craters, lava flows, and other geological features that modify the moon's surface over time.
What is the past participle of change?
The past participle is changed.
Is it true that the processes that changed earth in the past are different from the processes that operate in the present?
Some processes that changed the Earth in the past, like plate tectonics and volcanic activity, still operate today. However, the rates and intensities of these processes may have varied over geological time. Other processes, such as impact events or specific climate conditions, may have been more prominent in the past compared to their current significance.
How has health changed from the past?
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