The answer would be all of the above
The answer is <span>b. water erosion
Water erosion moves water downhill and during this process, different landforms are formed. <u>Some of them are rills, gullies, streams, rivers, tributaries</u>, waterfalls, floodplains, meander, lakes, etc.</span>
Answer: Actually, the submarine was built in Groton, Connecticut and was launched in the Thames River
Answer:
it is when air is traped and builds up into high preshure.
Echo sounding
Explanation:
Harry Hess discovered the Mid-Atlantic spreading ridge by using echo sounding techniques.
- Hess was a professor of Geology at Princeton University.
- After the second world war, series of equipment used were deployed for scientific use.
- The echo sounding was one of such devices that was adopted in mapping the sea floor.
- It works by sending an echo to the ocean floor and determining the height to the base by their reflection.
- From his works, he observed and noticed the mid-oceanic ridge.
- This led to the formulation of the theory of sea floor spreading.
learn more:
Sea floor spreading brainly.com/question/9912731
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