The nearest star to the earth is the red dwarf star proxima centauri, at a distance of 4.218 light-years. convert this distance to barleycorns. (1barleycorn=1/3 inch.)

Iwill give brainliest if you answer right : )

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is