The correct answer to go in the blank would be ''laws''.
Observation the action or process of observing something or someone carefully or in order to gain information:
This is because the water is dew.
Maybe we should probably check how that what gets to the ground in the morning. At the point when the surface of a question winds up plainly colder because of sending its idle warmth out, the current dampness in the air contracts among itself.
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy!