Điền từ vào chỗ trống

                     trip     expect    farmer    other    stations    valuable    space

      Why does Man want to go to (0) other planets the solar system? Justfor adventure? True, there is adventure in space travel. But a (1)           to other planets would also be practical. For example, space stations could be built that would give us (2)                   information about the weather.

      In space stations moving around the earth, Man could live and study the cloud formation on its surface. These formations could tell us what weather to (3)          in any part of the world at any time. Such information wouldbe useful to pilots, to ship captains, and even to (4)            must setdates for planting and harvesting.