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

One inventor that Thomas Edison can take credit fo is the light bulb

Hardly he had entered the office when he realized that he had forgotten wallet .

When the sun bear cubs are born, they are almost completely hairless, can’t bear, blind.

No sooner had the secretary hang up then the phone rang again 

If either of you take vacation now, we won’t be able to finish (this wor

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

People who exercise regularly are less likely develop heart disease than is those who do not keep fit

The prices of homes are as high urban areas that most young people cannot afford buy them

Hawaii’s eight major islands and numerous islets form the only state in the United States that is not lie on the mainland of North America.

Generally speaking, a magnitude 1.0 earthquake on Richter scale is detected by instruments not by person 

Malnutrition is a major cause of death in those countries where cultivation of rice have been impeded by recurrent drought

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

Chemical compound with Barium, Cobalt, and Strontium are responsible to many of the vivid colors fireworks.

They are planning on attending convention next month, and so I am .

The modern American dictionary is typically a single compact volume published with modest price.

None two butterflies have exactly same design on their wings.

Louis Braille designed a form of communication enabling people to convey and preserve their thoughts to incorporate a series of dots which were read on finger tips.

Most babies will grow up to be as clever as their parents

It was near end of prehistoric times that first wheeled vehicles appeared.

Before the Industrial Revolution come to America, the vast majority of the population had lived rural areas.