I don’t know what you are trying to ask complete my but here are the steps to a scientific investigation i hope this helps you
It is based on the idea that all the present continents were on supercontinent.
C is the first & the second question is A
Answer:
fly......................
if we are walking on a perfectly smooth ground which has no friction our force would simply cancel out the force reverted by the ground and we would fall.
We need it to help push out feet off the ground
Hope those helps :)
