The invention that made food production more efficient was the saw knife plow irrigation

Which elements are part of group culture ? choose all answers that are correct a. resources b. history c. population d. language

In at least two paragraphs, discuss the differences between the principles of republicanism and democracy. explain whether you think the united states is more of a republic or a democracy. refer to at least one example from the constitution. (10 points)

Demographers can compare a choropleth map to a to understand how geography influences population distribution and there are no a,b,c,or d u have to find it out ur self asap