Question

What unit of length is used by astronomers to measure distances in space?

star bursts
light years
astrometry meters
O universal miles

Answer 1

it is B

Step-by-step explanation:

Lightyear

Answer 2

Light years

Step-by-step explanation:

The light-year is a unit of length used by astronomers to measure distances in space and is equivalent to about 9.46 trillion kilometers (9.46 x 10^12 km) or 5.88 trillion miles (5.88 x 10^12 mi).