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

Conservation organizations help for to preserve the ecology of an area by keeping track of endangered species.

The common form of treatment it is mass inoculation and chlorination of water sources

Richard Rodgers and lyricist Oscar Hammerstei II brought to the musical Oklahoma extensive musical and theatrical backgrounds as well as familiar with the traditional forms of operetta and musical comedy.

One reason birds have been so successful is because of their able to escape danger quickly

It has been found that the lengthlight or dark periods influence certain activities of plants.

Rattan, a relative of bamboo, is often used to make tables, chairs, and other furnitu.

The duty of the police is the maintains oflaw and order.

If the Oxygen supply in the atmosphere was not replenished plants, it would be exhausted

Some psychologist believe those who are encouraged to be independent, responsible, and competent in childhood are likely more than others become motivated to achieve.

The Joshua tree is marked by their sword shaped leaves and greenish flowers.

Commercial letters of credit are often used to financing export trade, but they can have uses.

A ………. is an enormous system of stars in outer space.

Despite television is the dominant entertainment medium for United States households, Garrison Keillor’s Saturday night radio show of folk songs and stories is heard by million people

Choose the correct verb form:

____ 60,000 people filled the stadium.

Stars in universe vary in temperature, colour, bright, size, and mass

The Medal of Honor is the higher award for military bravery that can be given to soldier of the United States.

“Gone With the Wind”, the epic novel about life in South during Civil War period, took ten years write

Transfer taxes are imposed on sell exchange of stocks and bonds

The Texas Panhandle region, in the Northwestern part of the state, produces more wheat, cotton, and grain sorghum than any of area of Texas

My neighbors always indulge ________ my affairs.