Extinction is the term used when all members of a species dies and is never seen again
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4.6 million years ago the earth had less green house gasses so the atmosphere was cooler rather than hotter.
Answer:
D. Ultraviolet rays from the sun are prevented from reaching Earth.
surface.
Explanation:
What little is known is that the Earth's magnetic field creates the so-called "magnetic shield" that provides protection against some other dangerous forms of radiation, namely cosmic rays and solar wind.
While there is no danger of losing the Earth's gravitational field, the Earth's magnetic field is declining faster than any other geophysical phenomenon. This continuous loss of the Earth's magnetic field, and the associated increase in harmful radiation, are beyond human control.
1. dutch father
2. microscope
3.german botanist
4.plant parts
5.german scientist
Answer:
Cancer cells also make enzymes that break down normal cells and tissues as they grow. Cancer that grows into nearby tissue is called local invasion or invasive cancer. Cancer can also spread from where it first started to other parts of the body. This process is called metastasis
