• ベストアンサー
  • すぐに回答を!


Does the Earth have the natural resources to support this many people? Unfortunately, the answer to this question depends on information we don't have. For example, we don't know how people will choose to live in the future. We don't know what their standard of living will be. We also don't know what new technologies will be available in the future. We do know that the Earth's natural resources are limited. Fresh water, for example, is crucial for health and food production. However, more than 97% of the water on Earth is salt water, which is poisonous to both people and crops. Only 3% of the water on Earth is fresh water, and three quarters of that fresh water is frozen at the North and South Poles. Today, the demands for fresh water is greater than the supply in roughly eighty countries around the world. By 2025, scientists predict that forty-eight countries will have chronic shortages of water. At present, disalinization, or the removal of salt from salt water, is not a solution to the shortage of fresh water. It takes a lot of energy to remove the salt from ocean water, and that makes the disalinization process very expensive.


  • 回答数1
  • 閲覧数287
  • ありがとう数0


  • ベストアンサー
  • 回答No.1
  • SPS700
  • ベストアンサー率46% (15222/32749)

    地球には、これだけ多くの人を支える自然資源があるのだろうか?     残念なことにこの問いへの答えは、我々には持ち合わせのない情報にかかっている。     例えば、将来、生きることを選ぶ人の数が分からない。     その人たちの生活基準が分からない。      未来において、どんな新しいテクノロジーがあるかも、分からない。     しかし地球の自然資源には限りがあることは分かっている。     例えば、人の健康や、食料生産に、淡水が欠かせないことは分かっている。     しかし、地球の水の97%は、人間にも農作物にも有害な塩水である。     地球の水のわずか3%だけが淡水で、しかもその4分の3は北極と南極の氷である。     今日、世界の約80カ国において、淡水の供給量より需要の方が大きい。     2025年までには、48カ国が恒常的水不足に陥ると科学者たちは予言している。     現在、塩水から塩分を取り除く、ディセーリニゼーションは、水不足の解決法ではない。     海水から塩分を取り除くには、多大のエネルギーを必要とする、そのため海水脱塩は、非常に高価である。



  • 和訳をお願いします

    和訳をお願いします Have you ever wondered why the Earth looks so blue from space? This is because about three quarters of the Earth's surface is covererd by water. This may sound like we have a lot of water to drink. But in reality, only 3 percent of the Earth's water is fresh, and most of it exists as ice. Half of the water which exists as fresh water is found deep under the ground. In all, only about 0.05 percent of the Earth's water is fresh and drinkable. All living things carry water inside their bodies.For example,more than 60 percent of the human body is water.We need about 40 liters of water inside our bodies all the time but we lose some water every day. The water our bodies lose each day is about 2.5 liters. So we constantly need to put back the water we lose. We get water from drinks and the food we eat, such as fruit and vegetables. We need fresh water for our survival, but it is scarce and sometimes difficult to get.

  • 至急、英文和訳お願いします!

    We still don't know, after all, where the moon came from, or how life arose on earth, or why the speed of light is 186,000 miles per second. We don't know why people respond to music or whether it will definitely rain tomorrow. The genius of people like Newton and Einstein lies in the scientist who could ask incredibly simple questions. Asking good questions is moreimportant than answering them, because the answers are always changing. In fact, one of the main differences between science and philosophy or religion is that scientific beliefs tentative. By definition, they are incomplete. There will never be a time when people will "know about everything." But we should continue asking questions, because when we still learning, we stop growing. 流れは分かるんですが 正確な全訳ができず 困っています… 至急分かる方いらっしゃったら 回答お願いします!

  • 和訳をお願いします

    和訳をお願いします Today, about 10 percent of the world's population does not have enough water. This number may rise to 35 percent in 2025. What is more, water which is used in cities and industrial areas is often affected by pollution. Shortage of fresh water also affects food production. People throughout the world may suffer from serious food shortages in the future. We live in a country where we can get clean water just by turning on the faucet, but we need to try to secure more stable sources of fresh water for everyone in the world.

  • ★至急 英文 翻訳

    翻訳お願いします The earth is a planet covered with water. But only 2.5 percent of it is fresh water. In fact , this fresh water is so rare that it is called ''blue gold" A century ago, there were only about two billion people in the world. Now there are more than six billion, and people consume six times as much water as they did then. Today, one person in five does not have clean drinking water. According to the United Nations, there will be eight billion people in 2025, About sixty percent of them will not have enough water. The water shortage will be an urgent problem for people who live in Africa, the Middle East, and South Asia.

  • 英文の和訳をお願いします。

    英文の和訳をお願いします。 1.By this time next year ,we will have been doing business with each other for 20 years. 2.Unless the civilization we now know is to end,satisfactory substitutes for conventional energy sources will have been discovered and put to use in time. 3.she said to me, "it's very kind of you to invite me to the party." =she told me that it was very kind of me to invite her to the party.

  • 英文の和訳お願いします

    We cannot, we must not, refuse to protect the right of every American to vote in every election that he may desire to participate in.And we ought not, and we cannot, and we must not wait another eight months before we get a bill. We have already waited 100 years and more and the time for waiting is gone. So I ask you to join me in working long hours and nights and weekends, if necessary, to pass this bill. And I don't make that request lightly, for, from the window where I sit, with the problems of our country, I recognize that from outside this chamber is the outraged conscience of a nation, the grave concern of many nations and the harsh judgment of history on our acts.

  • 英語の長文、和訳お願いします、II

    The amount of land we can use to produce food is also limited. Today, roughty 11% of the land on Earth can be used for crops, while another 20% is available for raising animals. Each year, however, more of this land is lost as cities grow and roads stretch across the land. In addition overcultivation has already damaged an amount of farmland equal to the size of the United States and Canada combined. It is possible to increase the amount of farmkand, but only a little. Some farmland can be more productive if people start using different farming methods, but this will not increase worldwide production very much. While we have many different sources of commercial energy, there is a limited supply of many of them. Today, most of the world's commercial energy comes from three nonrenewable energy resources―petroleum, natural gas, and coal. Three quaters of this commercial energy is used by developed countries. As the standard of living goes up in other contries, so will the demand for energy. Some scientsts predict that if everyone in the world lived like an American, our fossil fuel supply would last for just fifteen more years. Clearly, the number of people that the Earth can support in the future will depend on many things. The Earth may be able to support 9 billion people, but what will their standard of living be? And what effect will all these people have on the environment?

  • この英文を訳してください!!お願いします><

    He can get a wonderful view of the dark,silent world under the sea right in front of his eyes. "Deep Flight Iis so small and light that you can send it anywhere." says Hawkes. For years people have said the last place that we have not yet explored is outer space, not on earth. But we really do not have to leave our planet. About 75 percent of the earth's surface is covered with water,and we have seen only a small part of what lies under the sea.

  • この英文の和訳お願いします。

    What makes somebody attractive? And this can be asked at all sorts of levels but a simple level is what makes for a pretty face? So,these are,according to ratings,very attractive faces. They are not the faces of real people. What's on the screen are computer generated faces of a Caucasian male and a Caucasian female who don't exist in the real world. But through using this sort of computer generation,and then asking people what they think of this face,what they think of that face,scientists have come to some sense as to what really makes a face attractive,both within cultures and across cultures. And that's something which we're going to devote some time to when we talk about social behavior,and in particular,when we talk about sex .Not all attractiveness,not all beauty of course,is linked to sex. So,pandas for instance,like this panda,are notoriously cute,and I don't have anything to say about it really. It's just a cute picture(laughter).

  • 英文の訳をお願いします;;

    ln rural Africa, clean water is a luxury. Most people don't have a water systemin their homes. lnstead,they often must walk long distances to wells and carry heavycontainers of water back home.PatriciaMolope,17,explains that before Diepsloot got a PlayPump,people would pay a taxi driver to take them to a far-off well. “Sometimesthe taxi drivers were busy,and we would have to do without bathing in order to saveour water. lt was too far to walk there. But now we have our own clean water in ourvillage,and life is better."