It is said that science has become too complex to acknowledge the existence of uni versal truths（）
Everyone knows that the world has too many people. But how many people are too many By what standard is the Earth overpopulated Certainly not in terms of living space. The world’s entire population could fit into Jacksonville, Florida, in the USA, with everyone having standing room. Dense cities often are surrounded by nearly empty countryside. For overpopulation to be real, there must be conditions that are undesirable and unmistakably caused by the presence of a certain number of people. If such indications cannot be found, we are entitled to dismiss the claim of overpopulation.
In arguing their case, believers in overpopulation make references to a vague standard known as "carrying capacity", colorfully illustrated with stories about bacteria and herds of zebras (anything but human beings). Famine, deepening poverty, disease, environmental degradation and resource depletion. Yet on no account is there evidence to support the claim of overpopulation.
A. would fit into one American city.
B. has certainly become too big.
C. has generally low standards.
D. would be better off with more standing room.
It is indeed unfortunate that in our modern era of technologic and scientific achievement, there is no adequate explanation for a seemingly simple question: "why do people become too fat and what can be done to prevent it" about 50 million men and 60 million women between the ages of 18 and 79 are "too fat" and need to reduce excess weight. This amount to about 377 million kg of excess fat for men and 667 million kg for women, or a total of t044 million kg (2297 million 1b) for the United States adult population! If the overfat men and women dieted by consuming 600 fewer calories each day to reduce to a "normal" value of body fat (achievable in 68 days for men and 101 days for women), the reduced caloric intake would equal 5.7 trilling calories. Translating this into fossil fuel energy and considering such factors as the energy required to plant, cultivate, harvest, feed, proce
A. Right
B. Wrong
C. Not mentioned
我来回答:
