estos 12 elementos en seis pares de elementos que tengan propiedades similares: Ca, K, Ga, P, Si, Rb, B, Sr, Sn, Cl, Bi, Br ayuda :/

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?