Choose the correct answer to complete the sentence. "Planting trees can contribute to _____ global warming"

An octopus has three hearts to pump blood throughout their body.

...........Lake Erie is one of five Great Lakes in ........... North America 

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

Although almost all insects have six legs, a immature insect may not have any.

We are not allowed to enter this construction site. A block of flats is being built here and it is dangerous to walk because you may get hurt by a fallen brick or some other objects

It has been found that the length of light or dark periods influence certain activities of flowering plants

There is not equivalent to this word in any other language.

The instructor advised the students for the procedures to follow in writing the term paper

Choose the correct answer to complete the sentence. "One of the main greenhouse gases that lead to global warming _____ carbon dioxide"

In the 1800’s store owners sold everything from a needle to a plow, trust everyone, and never took inventory

What caused the explosion in the factory it is still unknown

Depending on many factors, including climate, mineral content of the soil, and the permanency of surface water, wetlands may be mossy, grassy, or covering with shrubs or trees.

The Nobel Prize winning candidate, accompanied by  his wife and children, are staying in Sweden until after the presentation.

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

As the plane went more faster down the runway, David began to sweat nervously.

Choose the correct answer to complete the sentence. "Such unhygienic conditions encourage the spread _____ diseases."

Choose the correct answer to complete the sentence. "In order to prevent darkening, pears, peaches and apricots are ________ to the fumes of burning sulphur before drying"

Tea did not become popular in Europe until the mid 17th century when it has been first imported to England and Holland.

The builders of the variety ancient cliff ruins scattered throughout the canyons and mesas of the arid Southwest of the United States are known as the cliff dwellers.

A water molecule consists of two hydrogen atoms and has one oxygen atom.