Gunpowder, in some ways the most effective of all explosive materials, were mixture of potassium nitrate, charcoal, and sulfur.

The strongly patriotic character of Charles Sangster’s poetry is credited about greatly furthering cause of confederation in Canada

Duke University in North Carolina has an outstanding collecting documents concerning history

They usually took a tree back with them and put it on the centre of village

Because silk is the strongest of all natural fibers, ranking in strong with the synthetic fiber nylon, its look and fell are deceptive .

New York City surpassed the order Atlantic seaports in partly because it developed best transportation links with interior of the country.

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

He warned me to make an eye on my luggage that place was full of thieves

Choose the word which has a different stress pattern from the others.

Per capita income is an entire income dividing by the number of people in the nation

The plants which ................ in the living room need a lot of water.

Abraham Lincolns boyhood home resembled those of others midwestern pioneers, with its dirt floor, sleeping loft, and crude fireplace.

Short-wave radios can receive and transmit signals are used by pilots, the police, and amateur operator.

I _____ the film last night because I _____ it several times before.

Ballet performers must be believable actor actresses as well as expert.

The most of the energy used in our homes and factories is generated coal, oil and natural gas

Bronze, after being heated by a strong flame, will change color, especially when exposure to hydrogen

The authorities are worried the increase of drug abuse.

Many poets enhance their work by creating contrast among realism and symbolism in a given poem

So far most a million different species of insects have identified and named.

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