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Create AccountFundamental to all ordering of events of the Earth's history is the principle of the positional relationships of rock and mineral bodies. For example, in any stratified rock sequence, younger rocks overlie older ones.
Canada's first DIAMOND mine - the Ekati mine near Lac de Gras, NWT - began production in 1998. Most of the diamond production is exported, but a small percentage is reserved for cutting in Canada.
Weather modification has been used in an attempt to increase rainfall and snowfall, to suppress hail, to clear fogs, to modify tropical cyclones and to suppress lightning. The term "weather modification" is not normally used to describe inadvertent changes in our WEATHER.
Ice, including snow, is the solid phase of water. It is useful to think of it this way rather than as "frozen water" because water can achieve the solid phase through the freezing of liquid water or by direct deposition (sublimation) of water vapour, its gaseous phase.
Bridges, train trestles and elevated highways collapsed, sending hapless passengers plummeting to their deaths. Apartment buildings crumpled and fell, crushing terrified occupants still huddled in their beds.
at genus level is based on the morphology of the spores and vegetative cells and, at species level, by the ability to metabolize different sugars and related compounds.
The wren is a family (Troglodytidae) of small, mainly brown, insectivorous songbirds, characterized by chunky bodies, tails that are often erect, and forceful rather than musical songs.
Insects are small invertebrates (more than 75% of known species are less than 6 mm long) with 3 pairs of legs, 1 or 2 pairs of wings (or lacking wings) and a segmented body.
"Plant" refers to familiar land plants, and also to aquatic plants, mosses, liverworts and algae plants. Although not technically plants, fungi and bacteria are often included. Palaeobotany is the study of ancient plant life using fossil evidence. Plant fossils are found coast-to-coast in Canada, from 45-million-year-old mosses in British Columbia to fossil forests on Axel Heiberg and Ellesmere islands in the Canadian Arctic.
The narwhal, perhaps best known for its spiralled tusk, is a whale living in Canada’s arctic waters.
Millipede (class Diplopoda), terrestrial, usually elongate arthropod with a small head and short antennae.
Spinach (Spinacia oleracea), is a leafy, cool-season vegetable that belongs to the Chenopodiaceae family.
Thrushes (Muscicapidae) are a very large family comprising about 450 species of small passerines (perching birds) ranging 11-33 cm in length.
Pondweed is a common name for members of the family Potamogetonaceae [Gk potamos, "river"], which consists of the genus Potamogeton.
At 4:10 AM on 29 April 1903, 74 million tonnes of rock crashed down the east slope of Turtle Mountain in the Crowsnest Pass region of Alberta
In oceanographic terminology, fjords are estuaries, ie, semienclosed bodies of water in which seawater is measurably diluted by fresh water from land drainage.
Cucumber (Cucumis sativus) is an herbaceous annual vegetable of the Cucurbitaceae family. Only three wild plants belonging to this family occur in Canada.
