Answer:
Helium
Explanation:
The sun produces energy by fusing hydrogen atoms into helium atoms. This is a nuclear fusion that occurs at the suns core.
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Answer: Options A, B and D.
Explanation: shields are layers of old rocks that metamorphosed as a result of mountain-building events. Shields also have sedimentary layers that usually rest on the lava of the rock.
B) Faulting
Layers of strata in the earths crust naturally slide along each other. Sometimes friction or blockage causes this process to stop, until enough pressure builds up to overcome whatever the resistant force is. Faulting is the process by which this pressure forces the strata to continue their movement, often producing cracks in the involved strata, and causing earthquakes and tremors in the event of an intense pressure release.
-Ps Bri
(I don't mind if you give brainlyiest :))
These subs are useful in studying the ocean floor, where it is so deep that divers would be crushed by the water pressure. For example, research submersibles are used to study shipwrecks like the RMS Titanic.
