Please HElp Which specific process in the light-dependent reactions produces oxygen and hydrogen ions?

the formation of NADPH
the production of ATP
the splitting of water
the excitation of electrons in photosytem I

Study this image. which statements best describe the rock shown? check all that apply. the grains of this rock are jagged. this rock has several coarse grains. the grains in this rock are very large. this rock has a non-banded pattern. the color of this rock is determined by its texture.

Crossing over is a method of (blank)?

Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above