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Moon

The dark grey lunar surface reflects only 7% of the sunlight it receives (comparable to the reflectivity of black soil). The moon is dominated by thousands of craters, ranging from microscopic pits to gigantic Clavius, diameter 230 km.

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Pollution

Pollution can be defined as the release of any material, energy or organism that may cause immediate or long-term harmful effects to the natural ENVIRONMENT. Pollution was viewed initially as the unsightly mess or visible environmental damage resulting from careless disposal of various materials.

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Tide

The Earth is actually not in orbit around the sun but around the centre of mass of the Earth-sun system. Since all parts of the Earth move in the same orbit, they experience the same acceleration, but only at the Earth's centre is this acceleration exactly balanced by the sun's gravitation.

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Nuclear Fusion

Nuclear fusion is the combination of the nuclei of two light atoms to form a heavier one. The resulting atom has a smaller mass than the original ones; therefore, nuclear fusion is a method of transforming mass into energy.

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Palynology

Palynology is the study of spores and pollen, has many applications in botany, geology and medicine.

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Office Automation

Office Automation is a general term that includes a wide range of applications of computer, communication and information technologies in office environments. Though automation is in a continual state of flux, the size of the market is huge, with annual investments measured in billions of dollars.

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Optometry

Optometry [Gk optos, "visible" and metron, "measure"] is the profession of examining eyes for faults of refraction, ocular mobility and visual perception and of the treatment of abnormal conditions with correctional lenses and orthoptics.

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Pharmacy

Pharmacy is the act or practice of preparing, preserving, compounding and dispensing drugs. Louis HÉBERT, one of the first settlers of New France, was a pharmacist from Paris.

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Parasitology

Parasitology is a branch of biology dealing with organisms (animals or, rarely, plants) which live in or on other species (hosts) from which they derive nourishment.

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Palliser Expedition

The explorers amassed astronomical, meteorological, geological and magnetic data, and described the country, its fauna and flora, its inhabitants and its "capabilities" for settlement and transportation.

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Petroleum

Since its first commercial exploitation in the 1850s, petroleum has become the major energy source of Canada and the industrial world.

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Petrochemical Industry

The petrochemical industry, which produces chemicals using OIL AND NATURAL GAS as major raw materials, occupies an important position in Canada's MANUFACTURING and consuming sectors. Oil and natural gas are composed primarily of hydrocarbons. Most petrochemicals contain hydrogen or carbon or both.

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Media Literacy

Media literacy refers to the ability to interpret and understand how various forms of media operate, and the impact those media can have on one’s perspective on people, events or issues. To be media literate is to understand that media are constructions, that audiences negotiate meaning, that all media have commercial, social and political implications, and that the content of media depends in part on the nature of the medium. Media literacy involves thinking critically and actively deconstructing the media one consumes. It also involves understanding one’s role as a consumer and creator of media and understanding the ways in which governments regulate media.