Choose the correct answer to complete the sentence. "Having seen people suffer global warming consequences, people decided________ carbon footprints."

George Washington, his portrait appears on the quarter coin and the dollar bill, served two terms as president.

Most bats roost in crevices, caves, or building by day and are active at night or twilight.

Every city in the United States has traffic problems because the amount of cars on American streets and highways is increasing every year

Most pines grow rapidly and form straight, tall trunks that are ideally for lumber

Being the biggest expanse of brackish water in the world, the Baltic Sea is one of special interesting to scientists.

All the schools throughout of the country underwent the educational reform

Disease is not as widespread than before because of better preventive medicine and vastly improved nutrition.

Choose the best option:

The area is roped off because the water is seriously polluted.

Nobody bothered with telling me that the school had decided to have a special holiday on Friday

Phil can't go to .......... movies tonight because he has to write .......... essay. 

Some birds can travel at speeds approaching one hundred miles an hour, and a few land animals can so.

He understands …….... French, but he speaks it badly. 

Esperanto is an unique language because it was created by a man called Ludwig Zamenhoff.

It took the mayor over an hour explanation to the other members of the board why he had missed the last meeting.

The waste from the chemical factory is extremely .......

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.

Foreign students who are doing a decision about which school to attend may not know exactly where the choice are located.

I’ve got my photos drying out on the kitchen floor, so whatever you will do, don’t tread on them!

Nylon, a synthetic done from a combination of water, air and a by product a coal, was first introduced in 1938

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