How long does it take for light from a star that is 8 light-years away to reach earth

I believe 8 years, In earths way of measurement of years.

Ifound this on google “aristotle (384–322 bc) in western scientific taxonomy the greek philosopher aristotle was the first to classify all living things, and some of his groups are still used today, like the vertebrates and invertebrates, which he called animals with blood and without blood.” i hope this you for what your looking for.

Hydrosphere is the correct answer