I will mark you brainlist! Pick a natural disaster (tornado, hurricane or fire) and predict what the ecosystem would look like after (what is gone and what is still there).

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

happy to

pls mark as brainliest

c)as speed changes, wavelength and frequency change.

everything changes!