Earth is composed of four main layers, starting with an inner core at the planet's center, enveloped by the outer core, mantle, and crust. The inner core is a solid sphere made of iron and nickel metals about 759 miles (1,221 kilometers) in radius.
source: nasa
The tool that would be most useful to him would be a seismometer. It is an<span> instrument that measure motion of the ground, including those of seismic waves generated by earthquakes, volcanic eruptions. Hope this answers the question. Have a nice day. </span>
I’m not sure. What story is that?
Answer:
Option (4)
Explanation:
Here, Speed of light= 
Km/sec
Distance= 
Km
We know that,
=500 sec
=8 minutes 20 sec
Hence, the correct answer is option (4) i.e 8 minutes.
Answer:
Francisco does not really want Roman to come with him.
Explanation:
