Match the sentences with the function of the words in bold

If we start cycling more, it will help protect the environment. Moreover, it is good for your health. — to give one more reason to prove the idea expressed in the previous sentence

There are experts who say that alternative energy sources cannot replace burning fossil fuels. , if they are developed, they will become a full-fledged replacement.	to express your own opinion
We have to solve the problem of deforestation. , we must solve the issue of air pollution.	to give one more reason to prove the idea expressed in the previous sentence
On the one hand, zoos give people the opportunity to learn more about animals that do not live in their region and see them with their own eyes. , zoos do not allow animals to live in their natural habitat.	to summarize and conclude the previously discussed idea(s)
Some animal species are extinct and some food chains have been broken. , the ecosystem has become endangered.	to contrast the idea expressed in the previous sentence
This zone is a national park. , strict rules need to be imposed for its visitors.	to express the effect and result that come from the idea expressed in the previous sentence
Some factories discharged recycled water into rivers directly after production. , the level of water pollution has risen causing harm to aquatic ecosystems.	to express somebody else's opinion