Read the following article and answer the question. Article: A machine which makes water out of air could become the greatest household invention since the microwave. Using the same technology as a dehumidifier , the Water Mill is able to create a ready supply of drinking water by getting it from a limitless source-the air. The company behind the machine says not only does it offer all alterative to bottled water in developed countries,but it is a solution for the millions who face a daily water shortage. The machine works by drawing in damp air through a filter and over a cooling element which changes it into water droplets.It can produce up to 12 liters a day.The Water Mill will also produce more water when storms pass over, as the humidity in the air increases.In keeping with its ecodevelopment,the machine uses the same amount of electricity as three light bulbs. Inventor Jonathan Ritchey said:"The demand for water is .People are looking for freedom from water distribution systems that are shaky and unreliable". The machine,which is about 3 feet wide,is likely to costPS800 when it goes on sale here in the spring.Its maker, Canadian firm Element Four, estimates that a liter of water will cost around 20 pence to produce. Environmentalists claim half the world's population will face water shortage because of climate change by 2080.One in five humans is said to lack access to safe drinking water. The Water Mill is not effective in areas with below about 30 percent relative humidity, but with average relative humidity in England of more than 70 percent that won't be much of an issue here. Question: What would be the best title for this passage? _ Answer:
OPTIONS:
- Microwave for Household Use
- Filter to Draw in Damp Air
- Mode Dehumidifier on Sale
- Machine to Make Water out of Air

Answer: Machine to Make Water out of Air

Read the following article and answer the question. Article: English is a language spoken all around the world. There are more than 42 countries where the majority of the people speak English. Most native speakers of English are found in the United Kingdom, the United States, Canada, Australia, South Africa, Ireland and New Zealand. In total, for more than 375 million people, English is their mother tongue. An equal number of people learn English as a second language. These people will perhaps speak the language of their own country at home with their family, but the language of the government, schools, newspapers and TV is English. However, the number of people who learn English as a foreign language is more than 750 million. Everywhere in the world children go to school to learn English. In China, students learn English at school as a foreign language, except for those in hong Kong, where many people speak English as a first or a second language. In only fifty years, English has developed into the language most widely spoken and used in the world. English is the working language of most international organizations, international trade and tourism. English is also the language of global culture, such as popular music and the Internet. You can listen to English songs on the radio or use English to communicate with people around the world through the Internet. With so many people communicating in English every day, it will become more and more important to have a good knowledge of English. Question: In China we are learning English as a . Answer:
OPTIONS:
- first language
- second language
- foreign language
- mother tongue

Answer: foreign language

Read the following article and answer the question. Article: "Plants were expected to get larger with increased carbon dioxide in the atmosphere, but changes in temperature, humidity and nutrient availability seem to have _ the benefits of increased carbon dioxide," said researchers from the National University of Singapore. 45 percent of the species studied now reach smaller adult sizes than they did in the past. The researchers point out that warmer temperatures and changing habitats, caused by climate change, are possible reasons for the shrinking of creatures. "We do not yet know the exact mechanisms involved, or why some organisms are getting smaller while others are unaffected," the researchers said. "Until we understand more, we could be risking negative consequences that we can't yet quantify." The change was big in cold-blooded animals. Only two decades of warmer temperatures were enough to make reptiles smaller. An increase of only 1degC caused nearly a 10 percent increase in metabolism . Greater use of energy resulted in tiny tortoises and little lizards. Fish are smaller now too. Though overfishing has played a part in reducing numbers, experiments show that warmer temperatures also stop fish growth. There is a recent report on warmer temperatures' negative effects on plankton ,the base of the marine ecosystem. Warm-blooded animals weren't immune from the size change caused by climate change. Many birds are now smaller; Mammals have been miniaturized too. Soay sheep are thinner. Red deer are weaker. And polar bears are smaller, compared with historical records. This isn't the first time this has happened in Earth's history. 55 million years ago, a warming event similar to the current climate change caused bees, spiders and ants to shrink by 50 to 75 percent over several thousand years. That event happened over a longer time than the current climate change. The speed of modern climate change could mean organisms may not respond or adapt quickly enough, especially those with long generation times. So, it is likely that more negative influences of climate... Question: Researchers from the National University of Singapore believe that _ . Answer:
OPTIONS:
- how climate change affects animals' sizes has not been found clearly
- all the animals on the Earth have become smaller
- too many studies on animals' sizes have been done
- climate change has more negative effects on warm-blooded animals

Answer:
how climate change affects animals' sizes has not been found clearly