Humans, like all other creatures, have apparently changed their environment, but their changes are generally more dramatic than those of other species. Some of these changes, such as the destruction of the world's rainforests, the provision of pasture for livestock, or the drying up of almost three-quarters of the Aral Sea, were once the world's fourth largest freshwater lake for irrigation, leading to changes in climate patterns, which in turn changed flora and fauna Species distribution, scientists are trying to understand the long-term impact of human activities on ecosystems, while environmentalists are dedicated to experts in various fields. Citizens of the United States and other countries are trying to reduce the impact of human activities on population growth in the natural world.
Human population growth may be regarded as the root cause of almost all world environmental problems, with more and more people each year Joining the world, with the increase of population, more pollution will be produced, more habitats will be destroyed, and more natural resources will be consumed. Even if new technological progress can halve the environmental impact on everyone, once the world population is doubled, the earth will not be better than before.
Basketball is a sport, which is usually carried out in the indoor court. A team of five players from two teams tries to drop the ball from one of the two baskets by throwing an inflatable ball. Due to the continuous action and frequent scoring of basketball, the ball falls from one of the two baskets.
Basketball is one of the most popular spectator and participant sports in the world One. American and international basketball courts are slightly different in size. The basketball court is a rectangular area, ranging in size from about M × m (about ft × ft) to m × m (about M × m) (each backboard is fixed to the wall, suspended from the ceiling, or other installation methods, and its lower edge is about the specified basketball, which is an inflatable, leather or nylon covered ball, weighing from to grams to ounces), and the circumference About cm (about good.
We know that in China, a large number of students graduate from school every year, there are so many new workers, there are not enough jobs for them, the competition is becoming more and more fierce, as more and more enterprises close down, many workers have to escape this phenomenon, leading to in China, more people must stay at home, if a person has no high education, he will be in the future of China It's hard to find a job. I think mastering a skill may be one of the best foundations for finding a job in China,.