Answer:
<h2>In a vacuum, light travels at 670,616,629 mph (1,079,252,849 km/h). To find the distance of a light-year, you multiply this speed by the number of hours in a year (8,766). The result: One light-year equals 5,878,625,370,000 miles (9.5 trillion km).</h2>
if we have to download something then probaly a virus
Answer:
D) ion
Explanation:
A stable atom of calcium has 20 electrons
Latitude, elevation, ocean currents, topography, and prevailing winds. There's probably a few others but these are the most important.