There Pictures from outer space now show us how much land has ch

There Pictures from outer space now show us how much land has changed on earth．These images are taken by Landsat 7,a government satellite．The satellites have been used for 27 years．They reveal the clear-cutting of forests in the northwestern part of the United States．Pictures show the loss of rain forests in South America. NASA's Darrel Williams speaks about the Landsat 7 Project．He said that an eruption caused trees to burn up in a large forest．Fifteen years later,pinkish images from space show that the trees and plant life are growing again．Williams says that clear-cut areas easily show up in the pictures．He wants Americans to look at how much land is being cleared of forests in our country. Satellites have provided other information about changes on earth．In the past ten years,more than four miles have shrunk from glaciers in Alaska．Landsat 7 received these computer images of Glacier Bay in Alaska. Hurricanes Floyd and Irene have damaged the coastline in North Carolina．Runoff from farms and silt have gone into the．ocean according to satellite images．Loss of trees and forests have caused hotter summers in southern cities such as Atlanta,Georgia. The Landsat 7 images are like pictures in a photo album．Instead of pictures of the family,the album shows changes around the globe in the past 25 years. A new satellite,Terra,is going to be launched by NASA soon．It will be more advanced than Landsat 7 and will take important global pictures．Ocean temperatures and energy loss will be provided by Terra daily. NASA can tell that vegetation is growing back because of__.
A、a bright,white light that is reflected
B、little tiny trees that are growing
C、vegetable gardens that are planted
D、a light,pinkish view from space
【正确答案】：D
【题目解析】：根据文章内容，NASA的Darrel Williams描述了Landsat 7拍摄的图片如何展示了地球的变化。其中提到，“Fifteen years later, pinkish images from space show that the trees and plant life are growing again.” 这句话明确指出了在火山喷发后的15年，从太空拍摄到的粉红色图像显示树木和植物生命正在重新生长。因此，NASA能够判断出植被正在恢复的原因是因为从太空看到的这种“light, pinkish view”（淡粉红色的景象）。 选项A“a bright, white light that is reflected”并未在文中提及与植被恢复的关系。 选项B“little tiny trees that are growing”虽然描述了树木在生长，但文章强调的是从太空看到的图像颜色，而非树木的大小。 选项C“vegetable gardens that are planted”与文章讨论的内容不符，文章没有提及蔬菜园。 因此，正确答案是D，即NASA能够判断出植被正在恢复是因为从太空看到的淡粉红色的景象。