What is a good way to start a conversation?​

Rank the following from most to least devasting: ordovician,permaian,cretaceous, pleistocene

The physical feature that makes up part of the border between canada and the united states is the

What recommendations would you give to your local community to to decrease the local effects of human impact on the environment? list 2 recommendations and how they will positively impact your community. 3. what recommendations would you give to the global governments to decrease the global effects of human impact on the environment? list 2 recommendations and how they will positively impact our planet.