An equation is called blank if it's solution set is empty that is if it has no solution

Answerscripps institution of oceanography; i believe this is correct plz check first good luck;

The zhou dynasty (1046-256 bce) was the longest-lasting of china's dynasties. it followed the shang dynasty (c. 1600-1046 bce) and it finished when the army of the state of qin captured the city of chengzhou in 256 bce.

The answer is winds.

You can google it. the answer is d. international recognition