Our skin makes vitamin D when it is exposed to sunlight. Vitamin D helps the body take in calcium, which keeps bones strong. What does vitamin D help the body do?
- AFight off colds
- BGrow more hair
- CTake in calcium
- DDigest sugar
Our skin makes vitamin D when it is exposed to sunlight. Vitamin D helps the body take in calcium, which keeps bones strong. What does vitamin D help the body do?
Many people think goldfish have a memory of only three seconds. In fact, studies have shown that goldfish can remember things for months and can even be trained to respond to sounds. What does the passage say about goldfish?
A first-aid poster says: “For a nosebleed, sit up, lean slightly forward and pinch the soft part of the nose for 10 minutes.” Which way should a person with a nosebleed lean?
The library’s new rule states: “Mobile phones must be set to silent in the reading room. Calls may be taken in the lobby.” Where may visitors take phone calls?
“Mobile clinics now travel to farming villages twice a month. Before, people had to travel three hours to the nearest doctor.” What is the main benefit of the mobile clinics?
An advertisement says: “Everyone is switching to SparkleSmile toothpaste. Don’t be the only one left behind!” Which technique is the advertisement using?
The author writes: “Either we close the old swimming pool, or the town will go bankrupt.” What is the flaw in this statement?
“In the early 1900s, many cities added chlorine to drinking water. Over the following decades, deaths from diseases spread by water, such as typhoid, fell sharply.” Which conclusion is most reasonable?
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