Each chemical element is characterized to number of proton that an atom of that element contains, called its  atomic number

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

Keep trying to learn English. Don’t give up. Eventuall, you will succeed, even though you may not know how much time it cost

Despite the disappearance of the Mayan Empire, there are still Mayans the region that they once inhabited.

The most common form of treatment it is mass oculation and chorination of water sources.

The harder he tried, the worst he danced befo the large audience.

Tucked away in the mountainsBolivia and Peru, Lake Titicaca are the highest navigable in the world.nti

About 150 years ago, Charles Darwin shocked the world with his the cry that humans relativity to apes.

When he arrived at the furniture shop, they had been sold table he wanted .

Bells told people of  happy vents, such as weddings and born or, sometimes had to announce unpleasant events as a death.

Although he was happily married, he preferred spending lately hours at work to spendin evenings lately t home.

Have you learnt the reason why does water of the ocean becomes blue?

An electromagnet will remain magnetized only as longer as electricity flow through it

After the accident there was a solid of cars stretched back for several miles.

River transportation in the United States consists primarily of barg pull by towboats.

Woody Guthrie wrote thousand of song during the lifetime, many of which became classic folk songs .

Canada is made up of ten provinceand two territories, with governmental powers being divided between the federal government or provinces

They agreed with waiting for me if I was lately

Pictures of the surface of the planet Venus was received yesterday from space probe “Explorer”, which was launched last year

Jame Dickey’s first poem was published during he was still senior in college

The government’s budget maybe considered balanced when the amount of money it spend does not exceed the amount it receives