Read the following text carefully and answer questions no. 4 and 5:

Neil Armstrong was the first man who walked on the moon. He was an American astronaut. He was also an aerospace engineer. Armstrong was born on 5 August, 1930 in Wapakoneta, Ohio, USA. He earned his flight certificate in 1945 at the age of 15 only. In 1947, at the age of 17, he began to study Aeronautical Engineering in Purdue University, USA. He received B.Sc. degree in Aeronautical Engineering in 1955 and did M.Sc. in Aerospace Engineering from the University of Southern California in 1970. In 1958, he he was selected for the US Air Force's Man in Space programme. Neil Armstrong along with his crew started the journey to the moon in Apollo 11 on July 16, 1969. He was the commander of Apollo 11 and four days later they landed on the moon. They explored the surface and gathered moon rocks for over two hours. The next day they fired off the surface of the moon.