The Amazon Rainforest is the world's greatest natural resource—the most powerful and bio-actively diverse natural phenomenon on the planet. Yet still it is being destroyed just like other rainforests around the world. The problem and the solution to rainforest destruction are both economic. Rainforests are being destroyed worldwide for the profits they yield—mostly harvesting unsustainable resources like timber, for cattle and agriculture, and for cropping by rainforest inhabitants. However, if land owners, governments and those living in the rainforest today were given a practical economic reason NOT to destroy the rainforest, it could and would be saved. Thankfully, this practical economic alternative does exist. Many organizations have demonstrated that if the medicinal plants, fruits, nuts and other resources like rubber and chicle (树胶) were harvested sustainably, rainforest land has much more economic value than if timber were harvested or if it were burned down for cattle or farming operations. Sustainable harvesting of these types of resources provides this value today as well as more long-term income and profits year after year for generations to come.The Amazon Rainforest is the world's greatest natural resource—the most powerful and bio-actively diverse natural phenomenon on the planet. Yet still it is being destroyed just like other rainforests around the world. The problem and the solution to rainforest destruction are both economic. Rainforests are being destroyed worldwide for the profits they yield—mostly harvesting unsustainable resources like timber, for cattle and agriculture, and for cropping by rainforest inhabitants. However, if land owners, governments and those living in the rainforest today were given a practical economic reason NOT to destroy the rainforest, it could and would be saved. Thankfully, this practical economic alternative does exist. Many organizations have demonstrated that if the medicinal plants, fruits, nuts and other resources like rubber and chicle (树胶) were harvested sustainably, rainforest land has much more economic value than if timber were harvested or if it were burned down for cattle or farming operations. Sustainable harvesting of these types of resources provides this value today as well as more long-term income and profits year after year for generations to come.56.What does the author mean by saying are both economicA) People can profit a lot from what the rainforest yields in economical ways. B) People can profit all the way since they take economy into consideration all along. C) People can profit from the rainforest in an environmental rather than a destructive way.D) People can profit from the rainforest as long as they stop destroying it.57.The key in solving the problem of rainforest destruction is ________.A) sustainable development B) medicinal development C) practical development D) economic development 58.According to the passage, how can the land owners earn most?A) By converting the land to cattle operations. B) By harvesting the renewable resources. C) By harvesting the unsustainable resources. D) By chopping down the forest for subsistence crops.59.Which of the following is said about the suggested solution to rainforest destruction?A) It is theoretical rather than practical.B) It will benefit future generations rather than the present one. C) It brings less benefit than leaving the rainforest alone. D) It is important and promising and is being implemented.60.When centering around the severe destruction of the Amazon Rainforest, the author focuses on ________.A) the description of the poor situation B) the analysis of the economic cause C) the suggestion of the economic solution D) the evaluation of the practical solution