i am doing a poster about how to help climate change but whats some ways to reduce fuel, food and how to not overuse electricity, can someone please give me some ideas of what to start with

How many square miles is the big island of hawaii

Which movement developed in the early 1900s and encouraged the nationalist spirit of africans throughout the world? a. african nationalist b. tribalism c. pan-africanism d. african union

Since 1980, which three countries have either attacked or been attacked by iraq? a. iran, turkey, united states b. iran, israel, jordan c. iran, kuwait, united states d. iran, saudi arabia, egypt