Those who have never been abroad is eager to see how different the other cultures are.

Light can travel from the Sun to the Earth in eight minute and twenty seconds.

Because not food is as nutritious for a baby as its mother’s milk, many women are returning to the practice of breast feeding

In human beings, as in other mammal, hairs around the eyes, in ears and in the nose prevent dust, insects, and other matters from entering these organs.

A traveler can reach some of the village along the Amazon only by riverboat.

There is no limit to the diversity to be finding in the cultures of people throughout the world.

Million of people lost their jobs in the 90’s. This, in turn, caused social dissatisfaction with the political leaders who had promised jobs and prosperity.

Scientists are still uncertain of what the universe originated millions of years ago

Harry has been admitted to ..........School of Medicine at .......... Midwestern university. 

Only averaged about 5 feet above sea level, the Marshall Islands would disappear under the Pacific should the Arctic icepack melt.

Each chemical element is characterized to the number of protons that an atom of that element contains, called it atomic number.

A coral reef, a intricate aquatic community of plants and animals, is found only in warm, shallow, sunlight seas

Recently in the automobile industry, multinational companies have developed to the point where such few cars can be described as having been made entirely in one country.

Choose the correct answer to complete the sentence. "Global warming has ______ impact on water supplies."

Most bats roost in crevices, caves, or building by day and are active at night or twilight.

The first postage stamp, issued on May 6th 1860 in England, is was the Penny Black, which featured a profile of Queen Victoria.

Choose the correct answer to complete the sentence. "Having been _____ about the relationship between climate change and the spread of infectious diseases, everyone should get vaccinated."

If you ____ Mary by chance, please give her my phone number. 

Chicago’s Sears Tower, now the taller building in the world, rises 1,522 feet from the ground to the top of its antenna.

Choose the correct answer to complete the sentence. "In order to prevent darkening, pears, peaches and apricots are ________ to the fumes of burning sulphur before drying"

Floods, earthquakes and other natural disaster happen all over the world, causing death and material damage.