Explain scientifically how we know that Earth's crust is broken into pieces (plates). (explanations must be multiple sentences)

Geography

2 answers:

Mazyrski [523]2 years ago

8 0

Answer and Explanation:

Earths crust is broken into plates called tectonic plates. the plates move bc of convection currents in the earths mantle. convection currents are the movement caused with a liquid by the propencity of hotter and less dense matter to rise, and colder, thicker material to sink under the effect of gravitational pull, which as a result results in the transfer of heat. As a result these are moved by the heat composed by the common natural blight of radioactive component in the earth.

mina [271]2 years ago

4 0

Answer:

Explanation:

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The distance from Earth of the red supergiant Betelgeuse is approximately 643 light-years. If it were to explode as a supernova,

stepladder [879]

Answer: The brightness of our if betelgeuse were to explode as as a supernova would by getting the ratio betelgeuse to sirius. Which would then be:

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3 years ago

Which type of seismic waves are confined at the surface?

AfilCa [17]

The types of seismic waves are confined at the surface are

Rayleigh waves
Love waves

<u>Explanation:</u>

Rayleigh wave are having the motion of retrograde particle which is confined to the vertical plane of the motion. Love wave are having the motion which is transverse which is confined to horizontal plane of the motion. If we talk about other mentioned waves than P waves, S- waves all travel in different pace from slow to fastest. S-waves travel in slow pace whereas p-waves are called the fastest. Disperse waves also travel in a decent speed