The word Scuba is actually an acronym for self-contained underwater breathing apparatus. Scuba diving is an excellent way to see some very beautiful sites: coral diving sites with their colorful sea life are the most famous but other scuba diving (3) include shipwrecks and caverns.

NOISE POLLUTION
Noise is more than a mere nuisance. At certain levels and durations of exposure, it can cause physical damage to the eardrum, and (1)_____ in emporary or permanent hearing loss. In addition to causing hearing loss, (2)_____ noise exposure can also (3)______ blood pressure and pulse rate, cause irritability, anxiety, and mental fatigue, and interfere with sleep, recreation, and personal communication. Noise pollution control is, (4)______ , of importance in the workplace and in the community. Noise effects can be (5)_____ by a number of techniques, for example, increasing the distance or blocking the path between the noise source and the recipient, reducing noise level at the source, and protecting recipients with earplugs or earmuffs

The central mission of a library is to collect, organize, preserve, and provide access to knowledge and information. In fulfilling this mission, libraries preserve a valuable record of culture that can be passed down to (2)______ generations.

Scuba diving is a sport in (1) you swim underwater for extended (2) using special equipment.

The United States has many different types of families. (1)_____ most American families are traditional, consisting of a father, a mother and one or more children, 22 percent of all American families in 1998 were headed by one parent, usually a woman. In a few families in the United States, there are no children. These (2)_____ couples may believe that they would not make good parents; they may want freedom from responsibilities of childbearing; or, perhaps they are not (3)_____ able to have children. Other families in the United States have one adult who is a stepparent. A stepmother or stepfather is a person who joins a family by marrying a father or a mother. Americans (4)_____ and accept these different types of families. In the United States people have right to privacy and Americans do not believe in telling other Americans (5)_____ type of family group they must belong to. They respect each other’s choices regarding family groups. Families are very important to Americans.

Library is a collection of books and other informational materials made available to people for reading, study, or reference. The word library comes from liber, the Latin word for “book”. (1)_____, library collections have almost always contained a variety of materials. Contemporary libraries maintain collections that include not only printed materials such as manuscripts, books, newspapers, and magazines, but also audio-visual and online databases. In addition to maintaining collections within library buildings, modern libraries often feature telecommunications links that provide users with access to information at remote sites.
The central mission of a library is to collect, organize, preserve, and provide access to knowledge and information. In fulfilling this mission, libraries preserve a valuable record of culture that can be passed down to (2)______ generations. Libraries are an essential link in this communication between the past, present, and future. Whether the cultural record is contained in books or in electronic formats, libraries ensure (3)_______ the record is preserved and made available for later use. People use library resources to gain information about personal interests or to obtain recreational materials such as films and novels. Students use libraries to supplement and enhance their classroom experiences, to learn (4)______ in locating sources of information, and to develop good reading and study habits. Public officials use libraries to research legislation and public policy issues. One of the most valued of all cultural institutions, the library (5)_______ information and services that are essential to learning and progress

Noise effects can be (5)_____ by a number of techniques, for example, increasing the distance or blocking the path between the noise source and the recipient, reducing noise level at the source, and protecting recipients with earplugs or earmuffs