The most common elements in organic compounds are C, O, and H. These are respectively carbon, oxygen, and Hydrogen.
It's the first 1 trust me
Answer:
the u.s. navigation signal timing and rang, and (navstar) GPS
Answer:
the position when the river loses energy it may drop some of its load this is called the position factor affecting river processes erosion rate this is Greater where the discharge is higher energy is higher the weather the weather the more erosion takes place
Please help
I need help on the first one
