Space rocket

This task is about space rockets. 
 
Use this diagram to answer the questions that follow.  
diagram of a space rocket

Question 1Change answer

a)  How does the shape of the rocket help it travel through air and space?

Question 1Change answer

b)  The area of the rocket containing fuel (area 2) is large. Why does a rocket need so much fuel?

Question 2Change answer

c)  What are the fins for?

Question 3Change answer

d) i) When area 1 of the rocket returns to the Earth, its fall must be slowed down so that it is not damaged and the astronauts are kept safe. How could they slow down the fall of this part of the rocket? 
ii) Where on the Earth would you want this part of the rocket to fall so that there is as little damage as possible?