Give two examples of evidence of the earth's magnetic field.

See the explanation below

Explanation:

The first example is when we can see the aurora borealis, this phenomenon occurs when solar storms are directed toward earth and impact with the earth's magnetic field which serves as a shield for this type of energy coming from the sun. The reaction are colorful lights that can be seen especially in the northern regions of the planet.

The second phenomenon is the migration of birds when there are changes of seasons, they are guided by the orientation of the Earth's magnetic field, due to complex and sensitive organs in their brains, which allows them to orient themselves according to the Earth's magnetic field.

Note: The physicist who proved the existence of this field was Michael Faraday, and years later his assumptions were validated with Maxwell's equations

bacteria that live on the ocean floor are sustained by phytoplankton. phytoplankton, microscopic marine photosynthetic organisms, have a vastly significant role to play not only in the marine food web of which they’re part of, but also on a more global scale. despite their infinitely small size in comparison to other marine organisms, these tiny creatures occupy an immensely important ecological niche: they are the foundation of the marine food web, and as primary producers, play key roles in supporting all other organisms in the marine environment, as well as in the regulation of the earth’s climate through the sequestration of carbon, oxygen production, and other related processes. phytoplankton account for roughly half of all global primary productivity; therefore, their significance extends far beyond the marine environment alone. there is an intriguing sense of irony in the realization that these tiny living beings that often live out their existence unnoticed and undetected by the rest of the world, have such a far-reaching impact on the lives of virtually all other living organisms on the planet, particularly on those in the marine environment. the world that we have become accustomed to has been and is continuously shaped by the workings of these miniscule yet vital “plants of the sea”.

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