9.Which Ancient Civilization did not have irrigation techniques as a Technical Achievement? Why not?

Which quantities decrease as the distance between a planet and the sun increases? check all that apply.

It can be inferred that the dramatic increase in defense spending by germany was the result of. (a) attempts by great britain to take german colonies. ( b) fear of a two-front war against france and russia (c) the need to put down a communist rebellion (d) a competition with the allies to produce atomic weapons

The chinese exclusion act was the first significant law restricting immigration into the united states. why do you think the us government singled out chinese immigrants in particular for exclusion?