Answer:
depends on what species of african elephants but yes some species of this elephant are in fact indanger because of people getting very greedy with certain things.
Explanation:
Seafloor mapping during WWI and the Cold War had revealed the details of the physical structure of the ocean ridge system, and discovery of magnetic stripes on the ocean floor was the crucial turning point in development of plate tectonic theory. when deep-sea line soundings (bathymetric surveys) were routinely made in the Atlantic and Caribbean.
We need to assume that the orbits are circular; this is a very good approximation and do not hesitate to adopt it. We need then to consider the basic equation of circular motion that relates centripetal acceleration, angular velocity, mass, radius and force:
. We also have the basic equation of Newton, F=ma. By checking, we see that for each planet we have that a=v^2*r where v is the angular velocity. v=
where T is the orbital period, hence we have that a=
. Denote with the index 1 the Earth case and with 2 the Mars case. We have then that
. Substituting the known values in a calculator, we get the result: the centripetal acceleration of earth is 2.32 times greater than that of Mars.
Answer:
That will be absorbed by the plants and trees we had planted
Explanation:
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.
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Sea floor spreading brainly.com/question/9912731
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