It was believed that the magnetic field to be generated deep down in the Earth's core. But the truth is the flow of liquid iron generates electric currents, which produces magnetic fields.
But the truth is no one really knows for certain so the only thing we know is that the spin of the earth is the cause of its magnetic field
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The axial skeleton inclueds the
answer: A. vertebra, skull, and ribs.
Answer:
natural selection would be the answer
Explanation:
That means that some of the animals would survive.
Answer:
Reasoning: The word "it" is a pronoun because it refers to the weather. What is an antecedent? An antecedent is a noun or pronoun to which another noun or pronoun refers. It usually goes before the pronoun ("ante" means before).
Explanation:
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There is very little fossil evidence for the first 4 billion years of Earth.
Most of the fossil evidence is from the last 600 million years of Earth.
The fossil record is not complete.
Explanation:
Fossils are the preserved remains of dead and decayed organisms usually found in rock strata in nature.
Special conditions must be made available for an organism to be fossilized. The presence of hard part and suitable environmental condition ensures that an organism is fossilized.
- Since not all organisms can be fossilized, and the earth is dynamic in nature, most of the fossil records are not complete. Agents of denudation typically truncates fossil sequences in rocks.
- The oldest fossil has been date to be about 3.7 billion years. Most of these fossils are micro-fossils and are not very well abundant.
- There is little fossil for the first 4 billion years on earth.
- The cambrian radiations produced diversities of life about 600 million years ago and provided a very decent amount of fossils in the geologic record.
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Fossil records brainly.com/question/9415077
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