One of the best tools professionals advise to presentation makers is to use natural themes during their performance. Aside from creating a calm atmosphere among an audience, natural template helps them better concentrate on the topic and stay relaxed during the entire performance. You can also use a natural theme downloading a green nature free Google slides template on this page.
If you want to make a speech and create some impression on your audience, a standard Google slides theme will be enough. However, if you want to convince them with your ideas, you should use something much more original. This Green nature presentation template can help you with this by: