A mixture of rich soil and rocks

Rich garden soil is approximately 45 percent rocks and minerals, 5 percent organic matter and 25 percent each water and air. All soils have some mixture of the five basic components, and most soils may be amended to improve that composition so it will be more suitable for plant life.

Explanation:

in 1989, tiananmen square in beijing was the site of china’s main industries. china’s government headquarters. -pro-democracy demonstrations. (second choice)

answer; i believe its (jade); good luck