Help I'm stuck The scientific theory of evolution is accepted by scientists as a way to explain the
diversity of life on Earth. Which best describes the process of evolution?

1.Populations gradually change over time.
2.Populations change rapidly and then go extinct.
3.Populations go extinct and new species take their place.
4.Populations change into new species when the environment changes.

This fossil is of a species that no longer exists on Earth. What is this fossil evidence of?
Captionless Image

1.evolution
2.extinction
3.natural selection
4.overproduction

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there are two significant figures.

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.