B. Toad i believe that’s the answer not sure
Answer:1.) Water Cycle or Hydrologic Cycle (2) Carbon-Cycle (3) Nitrogen Cycle (4) Oxygen
Explanation:
Answer:
A. They require a medium to travel through
Explanation:
The medium can be any substance-solid,liquid,or gas- and the wave's speed depends on the properties of the material of the medium the wave travels through.