Q: When prehistoric man arrived in new parts of the world, something strong happened to the large animals; they suddenly became extinct. Smaller species survived; the large, slow-growing animals were easy game, and were quickly hunted to extinction. Now something similar could be happening in the oceans. That the seas are being over-fished has been known for years and researchers such as Ransom Myers and Boris Worm have shown how fast things are changing. They have looked at half a century of data from fisheries around the world. Their methods do not attempt to estimate the actual biomass (the amount of living biological matter) of fish species in particular parts of the ocean, but rather changes in that biomass over time. According to their latest paper published in Nature, the biomass of large predators (animals that kill and eat other animals) inanes fishery is reduced on average by 80% within 15 years of the start of exploitation. In some long-fished areas, it has halved again since then. Dr. Worm acknowledges that these figures are conservative  . One reason for this is that fishing technology has improved. Today's vessels can find their prey using satellites and sonar, which were not available 50 years ago. That means a higher proportion of what is in the sea is being caught, so the real difference between present and past is likely to be worse than the one recorded by changes in catch sizes. In the early days, too, longlines would have been more saturated with fish. Some individuals would therefore not have been caught, since baited hooks would have been available to trap them, leading to an underestimate of fish stocks in the past. Furthermore, in the early days of longline fishing, a lot of fish were lost to sharks after they had been hooked. That is no longer a problem, because there are fewer sharks around noise. Dr. Myers and Dr. Worm argue that their work gives a correct baseline, which future management efforts must take into account. They believe the date support an idea current among marine... The aim of the extinction of large prehistoric animals is to suggest that   _  . A) large animal were not easy to survive in the changing environment B) small species survived as large animals disappeared C) large sea animals may face the same threat today. D) Slow-growing fish outlive fast-growing ones
A: C


Q: Museums in Texas Depot Museum And Children's Discovery Center The museum is in the depot's waiting room and office. The warehouse is a hands-on learning center. See the 1908 "Arnold Outhouse", log cabin, doctor's office, dogtrot cabin, oil derrick, cotton gin, print shop, and syrup mill. Open 9 a.m.-5 p.m. Mon.-Fri. and 9 a.m.-1 p.m. Sat. Admission charge. Address: 514 N. High St. in the restored 1901 Missouri Pacific Railroad depot, Henderson Phone: 903/657-4303 Tex-Ark Antique Auto Museum It is designed to preserve, collect, operate and interpret a collection of autos and auto transportation equipment. Library and archive collection available. Open 9 a.m.-5 p.m. Sat. and 1-5 p.m. Sun. Admission charge. Address: 217 Laurel St., Texarkana Phone: 903/938-9201 Jefferson Historical Society Museum Find four floors of documents and antiques, including mementos of pioneer days, early steamboat commerce and antebellum society. See paintings and sculpture from the D.D. Feldman collection. It also has an outstanding doll collection. Open 9:30 a.m.-4:30 p.m. daily. Admission charge. Address: Old Federal Building, Austin and Market streets, Jefferson Phone: 903/665-2775 The Woodlands Children's Museum The museum provides hands-on, interactive exhibits designed to immerse children and adults in play that stimulates curiosity and provides opportunities for learning in a nurturing environment. Open 10 a.m.-5 p.m. Tue.-Sat. and noon-5 p.m. Sun.[:##] Admission charge. Address: 4775 W. Panther Creek Drive, the Woodlands Phone: 281/465-0955 If you are free on Sunday afternoons, you may visit the following museums except   _  . A) Tex-Ark Antique Auto Museum B) The Woodlands Children's Museum C) Jefferson Historical Society Museum D) Depot Museum And Children's Discovery Center
A: D


Q: October sixteenth is World Food Day.This day is also the anniversary of the United Nations Food and Agriculture Organization(F.A.O.).The UN agency leads international efforts to defeat world hunger.It was created in 1945. The F.A.O.says more than one hundred fifty countries are to hold special events to celebrate World Food Day.At F.A.O.headquarters in Rome,for example,runners will compete in a five-kilometer race through the city's historical area.Events in other countries include discussions among experts,press conferences and musical programs. The message of this year's World Food Day is"investing in agriculture for food security".The F.A.O.says,"During the early 1990s,the foreign aid for agriculture was nine thousand million dollars each year.But now, it has declined to less than five thousand million dollars a year."Yet, the F.A.O.estimates that more than eight hundred and fifty million people around the world do not get enough food. The UN agency notes that seventy percent of the world's hungry lies in the farmers who grow small amount of food.Many also face problems of feeding themselves.The F.A.O.says agricultural aid could help small farmers make a profit from their crops.Farmers would also be able to feed their families throughout the year and re-invest in their farms.They could buy better seeds,equipment and chemical fertilizers to help their crops grow. Muhammad Yunis.the winner of the Nobel Peace Prize for his efforts to improve the lives of poor people,as well as his Bangladesh microfinance organization,the Grameen Bank,has lent small amount of money to poor people who are unable to get traditional loans,especially women.Minister Yunis says that he plans to give his share of the one million three hundred thousand dollars Nobel award to good causes.He says he wants to establish an eye hospital and start a project to produce low-cost food for the poor. Which of the following statements is TRUE? A) O.is established to invest in agriculture for food security. B) The foreign aid for agriculture has reduced by nearly 50%in recent decades. C) The Grameen Bank has provided large amount of loans for poor farmers. D) Yunis will donate his entire Nobel award to help solve the hunger for the poor.

A: B