Four students were asked to calculate the number of molecules in 25 g of water. Which student correctly calculated the number of molecules in the 25 g of water?

Which sentence best describes the formation of igneous rock? a- lava on the surface dries up and makes arock b_melted rocks cools and forms crystals c_rocks under tremendous heat and pressure d_magma is melted rock underground

Modern weaponry has increased the number of deaths in wars and violent conflicts.

1. list three scientific reasons cockroaches may fly.