<span>limited opportunities for agriculture</span>
Answer:
A. was once covered in wet mud
Explanation:
The presence of preserved mud cracks indicates the region was once covered in wet mud, the wet mud sticks for a period of time. Mud cracks are known to be sedimentary in nature
The amplitude of a wave is a measure of the amount of energy it carries.
Cold air is dense and warmer air is less dense and so as the cool dense air sinks the warm air rises and takes its place causing a convection current. This is the same with water and other gaseous and liquid substances.
Is it Slavic? (Sorry I am not sure but this closest to what I have as an answer)
