tailieunhanh - Mastering skills for the toefl ibt advanced part 112

Tham khảo tài liệu 'mastering skills for the toefl ibt advanced part 112', ngoại ngữ, toefl - ielts - toeic phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | allowed to pay less money to the government in the form of taxes then they would give it away more effectively. It didn t happen. There was and still are excellent philanthropists wealthy people that give their money to others in need but the problem is there aren t enough of them So governments tax people and if they are at their best should use that money to make sure that everyone benefits. There are a lot of things governments provide that aren t always recognized but that improve the condition of all people rich and poor alike. Without government programs we would never have seen industrial cities cleaned up and made into healthier safer places to live than they once were. Some would argue that these changes were more beneficial to most poor people than Carnegie s libraries since these changes directly raised living standards. 10 Astronomy W We ve been talking about the lunar landscape and lunar soil and today I want to pose an interesting question to you one that scientists are grappling with as we speak. Is there water on the moon Or theoretically could there be water on the moon It would seem that yes water could be on the moon. We just haven t found it yet. Especially since we ve talked about how the moon likely shared a similar origin with Earth. M But how can there be water on the moon if there is no atmosphere and little gravity Wouldn t any water that may have been on the moon have evaporated a long time ago W Yes Earth and the moon share similar origins but scientists think that if there is water on the moon it likely came from comets or meteors that contained ice and crashed into the moon. This is also a theory of how Earth got its water but what you said is correct. Any water on the moon s surface would evaporate quickly. That s why scientists think any water on the moon would have to be in the form of ice specifically underground ice deposits. These could be in the form of crystals or perhaps larger bodies of ice. M You mean like an underground ice

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