Answer:
<h3>THE ANSWER IS LETTER C</h3>
HOPE IT HELPS
The two observation made them came to the conclusion that earth's outer core is liquid is, 'Shear waves' one of energy waves do not travel through the outer layer and the magnetic field found in earth's surface
Explanation:
- Shear waves are nothing but caused by shear force, it forms as a result of earthquakes.
- Shear force is defined as the force you need to rub two solid objects.
- Scientist found that shear waves disappear when it reaches the outer core of the earth and re-appears when it reaches the inner core of the earth.
- As we all know, earth has a magnetic field which reaches the atmosphere, for this either there should be a permanent magnet inside the core of the earth or ionized molecules flow in the liquid.
- Earth cannot have a permanent magnet in the core because of the high temperature at the core hence, the other option is feasible.
Answer:
Metallic.
Explanation:
Hello,
In this case, when nickel and tin bond, the difference in their electronegativities results:
Such difference, in addition to the fact that nickel is a transition metal and tin a metal, will suggest that the predominant type of bond for this substance is metallic as the attractive force between the conduction of electrons and positively charged metal ions is present.
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I pretty sure it true I’m not completely sure
The answer to this is surface wave i think
