Many animals are active at night and sleep during the day. These animals are called nocturnal. Owls, bats and foxes are examples of nocturnal animals. What does “nocturnal” mean?
A bus pass reads: “Valid for unlimited rides on 7 days in a row, counting the day of first use.” Amir used his pass for the first time on Monday. What is the last day he can use it?
We blink many times every minute. Blinking spreads tears across the eye, which keeps it moist and washes away dust. Why do we blink?
“When you have a cold, the lining of your nose swells and makes more mucus. This is why your nose feels blocked.” What causes the blocked feeling in your nose?
In the sentence “The medicine may cause drowsiness, so do not drive after taking it,” what does “drowsiness” mean?
The word “quarantine” comes from the Italian “quaranta giorni”, meaning forty days. In the 1300s, ships arriving in Venice during plague outbreaks had to wait forty days before passengers could come ashore. Why did ships have to wait before passengers came ashore?
“When Aunt Rose saw the broken vase, she said, ‘Well, I never liked that vase anyway,’ and gave her nervous nephew a wink.” Why did Aunt Rose most likely say this?
The author writes: “Online reviews are useful when choosing a restaurant. Still, readers should remember that people are more likely to write a review after a very good or very bad experience.” What is the author warning about?
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