A Praying Mantis was covered with water. Within a couple of hours, the liquid water changed into water vapor. Is this a physical or chemical change? Explain your reasoning.

Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit

Which part of the spine is likely to cause a nerve signal to travel faster? a. backbones b. white matter c. nuclei d. gray matter

Can yall plz me on this question im having a hard time think about it