From deserts(沙漠) and beaches to playgrounds, sand is a common sight. But you might not know that sand is also a useful resource(资源).Sand is the second most-used resource in the world after water, the BBC reported.However, the UN said that sand is not limitless and that we might ...
Passage 8From deserts and beaches to playgrounds, sand is a common sight. But you might not know that sand is also a useful resource.Sand is the second most-used resource in the world after water, the BBC reported. However, the UN said that sand is not limitless and we might be runnin...
orache - any of various herbaceous plants of the genus Atriplex that thrive in deserts and salt marshes orach Atriplex, genus Atriplex - orach; saltbush Atriplex hortensis, garden orache, mountain spinach - Asiatic plant resembling spinach often used as a potherb; naturalized in Europe and North...
Fires are most common in grasslands with high levels of plant productivity. Fires are important for keeping trees from encroaching into grasslands—many tree species are killed by fire because their active growing parts are aboveground. Grassland plants survive and even thrive after fire because their...
Some areas, because of their soil texture, topographical position, or distance from rivers or groundwater, have virtually no water available to plants, whereas others do. The nature of plant life in deserts is also highly dependent on the fact that they have to adapt to the prevailing arid...
C. Yang Qichang and his team tried growing other food plants in desert greenhouses. D. Yang Qichang's team found that growing rice in the desert greenhouses was faster but more expensive. 相关知识点: 试题来源: 解析 C 问题要求找出与文章内容相符的选项。 文章提到杨先生和他的团队在成都的...
Also, this may affect the habitats ( 栖息地 ) of many plants and animals. 5语法填空From deserts and beaches to playgrounds, sand is a common sight. But you might not know that sand is also a useful resource. Sand is the second most-used resource in the world after water, the BBC ...
Texas is a huge climate transition zone, ranging from deserts in the west to swamplands in the east. Not surprisingly, the state’s varied habitats host one of the most varied populations of spiders in the southwestern United States—more than a thousand
which allows the plant to stay productive at high temperatures. Succulents, such as cacti and agaves, have another kind of photosynthesis known as CAM photosynthesis, which allows them to live in deserts and other dry regions. C4 and CAM have different functions, yet they both use the same bi...
Gymnosperms are a group of plants that share one common characteristic: they bear seeds, but their seeds do not develop within an ovary. For this reason, gymnosperms were long thought to be an evolutionary precursor to the angiosperms, which are seed plants that enclose their seeds in an ...