The average temperature on earth has changed through the course of earth history true or false

After world war i, how did the us economy compare to that of germany?

Pollution from one country can affect another. for example, south korea is especially affected by pollution and dust storms that come from

According to the article about the zhou dynasty, this dynasty was broken into different eras because its capital changed from place to place. how many different eras were there in the zhou dynasty? a. two b. six c. ten d. fourteen