1. PART A:Which statement expresses the central idea of
the text?
A. Scientists' goal in exploring space is to find planets that
can support human life.
B. Cassini and SOFIA have provided everything scientists
need to know about space.
C. Scientists are uncovering new information and making
new advances in space.
D. Growing cabbage and lettuce in space means that
astronauts can harvest almost any vegetable.
