What happens first when a star begins to run out of fuel?

the star’s core shrinks.
the star becomes a black hole.
the star becomes a white dwarf.
the star’s outer layer drifts away.

Darius is observing a family of geese, which includes a male goose, female goose, and several goslings. when a dog approaches the geese, the male goose hisses at the dog and flaps its wings threateningly. is the behavior of the male goose an example of an adaptation?

Plants consume most of their carbon from a. the soil b. the water c. the roots d. the air

2. which is the last step in the scientific method?