What is a light year?
the time it takes for light to reach Earth from the Sun
the distan...
Answers: 3
Biology, 22.06.2019 03:00, Aminton737
What percentage of light hits earth's surface directly?
Answers: 3
Physics, 25.10.2019 23:43
Mathematics, 25.10.2019 23:43
Mathematics, 25.10.2019 23:43
Mathematics, 25.10.2019 23:43