How was the lunar regolith formed?

Describe different biomes. what are some adaptations that organisms (plants or animals) must have to live in each biome?

An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?