Complete the sentences with the words below. There is one word that you do not need.
make; provide; reduce; replace; start; suffer; treat.

1 Galileo used a telescope to his famous discovery of the moons of Jupiter.
2 We can carbon emissions if we walk or cycle to school instead of going by car.
3 Online encyclopaedias a lot of information, but not all of it is reliable.
4 If we are going to colonies on Mars, we should make sure there is water there first.
5 Doctors use antibiotics to many of the infections caused by bacteria.
6 Many countries catastrophes like earthquakes and volcanic eruptions every year.