What is the ultimate source of energy that drives the food chain

Many colonist in america joined army and fought to be free from british rule

On what political idea did president truman base the marshall plan? as economic aid increased in europe, the friendship of nations with the united states would increase. as peace throughout the world increased, the threat of another world war would decrease. as prosperity in europe increased, the threat of communism spreading would decrease. as the power of capitalism increased in europe, stalin's power in the soviet union would decrease.

So know lets geta real question what does this actually mean