Early humans arrived in australia about 40-45,000 years ago. where did they come from, and how did they get there?

a. they arrived from the west, crossing the indian ocean from africa.
b. they arrived from polynesian islands in the pacific via boat.
c. they came from what is now southeast asia via a land bridge.
d. they came from present-day new zealand via a land bridge.

Read the paragraph below and answer the question that follows. "andy was asked to speak in a school assembly about a fundraising opportunity for a fellow student who had recently been diagnosed with leukemia. andy's stomach hurt and his hands were cold. "steady man," he thought. "you can do this. it's for tim. he needs our ." andy could picture the students wanting to get involved. it occurred to him now that he wasn't just giving a speech. he had something worthwhile to say. which strategies did andy use to reduce his apprehension? select all that apply." be prepared. use muscle relaxation techniques. get experience. think positively. focus on communicating to the audience.

Why do you think that historians use the word “revolution” to describe important changes in agriculture? how did the green revolution and other agricultural revolutions change the lives of billions of people? < < read less

Why would someone who is studying the history or culture of this time. find this text interesting important or useful?