Impact means to have a strong effect on something
Contribute means to play a part in creating something
Both impact and contribution identify one thing's influence, effect, significance, importance, and results on another. This year, geography, religion, and writing have impacted and contributed positively and negatively to many civilizations we have learned about!
Geography often impacts or contributes to economics (trade, farming, travel), religion (beliefs, spreading of religion or isolation), and achievements (useful inventions)!
Religion often impacts or contributes to geography (explaining natural events), achievements, politics (establishing power, laws, governments), and social structures!
Writing often impacts or contributes to economics (trade), achievements, religion (beliefs, spreading of religion), and politics (establishing power, laws, governments)!