Countries around the globe are spending billions of dollars and lots of time on various space missions, whether to Mars     11     other planets much further away.

Firstly,     12     (explore) space has already made a difference in the fight against world hunger. A number of the satellites record data on land and weather patterns. As     13     result, space-based science has helped farming in its efforts to grow enough food    14    (feed) Earth’s increasing population.

Secondly, space exploration has already promoted technological    15    (improve) that benefit us all. High-end products around the world     16    (make) to a higher standard now because of advanced technology     17     was first created to meet the requirements for space exploration.

    18    (final), sending astronauts into space has helped people to think about the world’s problems and even to find ways to solve them. Seeing pictures of our planet as an island in a black sea made people realise that our planet’s resources are     19    (limit). The greatest attention at present is on Mars because it is closer to Earth. In the future, humans may live on both planets.

    20     closing, exploring space provides the world with many different benefits. Therefore, it should continue so as to provide new and better solutions to people’s short-term and long-term problems.