The Mississippi-Missouri-Ohio river system is the largest and most significant river system in the world.
it formed a moon for earth half of the earth came off and now it is considered our moon
B. Natural selection and Evolution both show the change over time in the survival of a specific organism. Natural Selection chooses traits that correspond the best with the ecosystem, while evolution gradually changes the species as a whole to cope with the surroundings.
This question makes no scene
-struggling economy.
Developed countries tend to extort developing countries and get richer while the developing countries get poorer , hence a struggling economy.
