Q. 1. Fill in the blanks.
1) __________________ was the first woman to fly in space.
2) Tereshkova made ______________ orbit of the earth, lasting over 71 hours.
3) Iron was discovered ________________ years ago.
4) Bessemer was knighted for discovering a _________________ for legal
documents.
5) Television pictures are made up of ____________________ lines across the
screen.