How did crowther's research affect the billion tree campaign? -this is from my i-ready

As he did for tree numbers, Crowther drew on other researchers' data. He plotted the results of 49 experiments and found a trend: Warming soils lost carbon, and the more carbon a site held, the more it lost. ... The result would be, he said, like adding emissions from an additional United States to the atmosphere

1. artillery

2. jose san martin

3.their economies remained dependent on outside powers.

4. drafted new economies

5. democracies have replaced dictatorships