Answer :
It is difficult to study about earth and its structure because its surface is round in shape. I hope this answer helps you.......Be happy........
[tex]\huge{\bold{\underline{\boxed{\boxed{Hello\:Brainly\: User!}}}}}[/tex]
[tex]\bold{\huge{\underline{Answer:}}}[/tex]
- It took us years of scientific investigation and analysis of data to form an understanding of the interior of the earth.
- It is difficult to study the formation of the earth.
- And it's structure because of the lack of knowledge regarding the process going on in the universe.
- Scientists are still debating how our earth formed.
[tex]\bold{\huge{\boxed{Hope\:It\:Helps\:You}}}[/tex]