Which describes a light-year?(1 point) a year on a low-gravity planet like Mercury
a year on a low-gravity planet like Mercury

total amount of light energy Earth receives in a year
total amount of light energy Earth receives in a year

the distance that light will travel in a year in a vacuum
the distance that light will travel in a year in a vacuum

the time it takes light to travel between the sun and Earth

Does water only take one path through the water cycle? (15 points)

Which of the layers of the earth has the following three characteristics? i. it is made of molten rock. ii. it has currents that are constantly moving. iii. earth’s plates float on top of its currents.

What is the difference between the cultures of central asia and the caucasus region? the majority of people in central asia are muslim; the majority in the caucasus region are christian. the primary language in central asia is armenian; the primary language in the caucasus region is russian. central asia has been plagued by ethnic unrest; the caucasus region has had little ethnic conflict. the effects of soviet rule can still be seen in central asia; the caucasus region has developed its own identity since the fall of the ussr.