Humus is formed during microorganisms decompose animal and plant material into usable elements by plants .

There is a hostel the bottom of the canyon where we can stay there.

The three largest state is, and has been since Alaska’s admission into Union, California.

In the United States, among 60 percent of the space on the pages of newspaper reserved for advertising.

The ancestors of some French Americans originally came to The United State because of French Revolution, that broke out in 1789.

Tucked away in the mountains of Bolivia and Peru, Lake Titicaca are highest navigable lake in the world

The author ahas not rarely written anything that was not best-seller.

Conservation organizations help erfor to preserve the ecology of an area by keeping of endangered species

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

Psychologist Abraham Maslow argued that humans have unique desires to discover and understand, the giving of love to others, and to fulfill the inners potential

A light year is the distance that light travels in one year calculated using the speed of 186,284 miles the econd as a base.

The first vaccine ever developed was used to combat and fight a smallpox, a disease resulting infection by a virus

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The students in the dormitories were forbidden going out after 11:30 p.m., unless they have special passes

Electric motors range in size from the tiny mechanisms that operate sewing machine the great engines in heavy locomotives.

Carnegie hall was the first building in New York designed special or orchestral music.

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

It was Mary Anderson, an amateur invention, who first patented windshield wipers for automobiles

The British national anthem, calling “God Save the Queen”, was traditional song the 18th century.

Choose the word(s) OPPOSITE in meaning to the underlined word(s): Little Mary had a disadvantaged childhood with little education and money.

Many people have found monotonous buzzing of the vuvuzela in the 2010 World Cup matches annoyed

The sun contains 99.9 percentage of the mass of solar system.