Search for ""

Displaying 341-360 of 898 results
Article

Gull

The gull (Laridae) family consists of long-winged, web-footed birds containing 2 subfamilies: Larinae and Sterninae.

Article

Grayling

Grayling is the common name for freshwater fishes of class Actinopterygii, family Salmonidae (salmon), subfamily Thymallinae (sometimes elevated to family rank).

Article

Greenstone

Greenstone, general term for dark green, compact metamorphic rocks formed by the alteration of dark-coloured IGNEOUS ROCKS. Basalt, a common example, is a major component of the greenstone belts of the Canadian SHIELD. These belts contain the Shield's principal GOLD and base-metal mines.

Article

Groundwater

Groundwater interacts with lakes and rivers as part of the hydrologic cycle. The cycle begins with the formation of clouds through evaporation from the ocean, lakes, rivers, plants and soil.

Article

Great Auk

The great auk (Pinguinus impennis), the largest and only flightless auk, is extinct.

Article

Grebe

Grebe is the common name for members of the family Podicipedidae, aquatic birds with almost worldwide distribution.

Article

Environmental Governance

Environmental governance is a term used to describe how decisions about the ENVIRONMENT are made and who makes such decisions. It is a broad term that includes the formal and informal institutional arrangements for resource and environment decision-making and management.

Article

Soil Conservation

Soil conservation is a combination of all methods of management and land use that safeguard the soil against depletion or deterioration by natural or human-induced factors.

Article

Yellow Jacket

Yellow jackets are large WASPS that are closely related to HORNETS. Sometimes the names become confused because the only difference between yellow jackets and hornets is size; yellow jackets are smaller.

Article

Dandelion

Dandelion [Fr, dent-de-lion, "lion's tooth"], perennial, herbaceous plant of family Compositae or Asteraceae.

Article

Eagle

A large bird of prey, the eagle (family Accipitridae) has exceptionally keen vision, long, powerful wings, a hooked bill and strong feet with sharp curved talons.

Article

Pesticide

Substances used to control pests include insecticides (for control of insects), fungicides (for disease-causing fungi), herbicides (for weeds), rodenticides (for rodents), avicides (for birds), piscicides (for fish) and nematicides (for nematodes).

Article

Dry Fishery

That portion of the Newfoundland cod fishery in which the split and cleaned product was salted and dried on shore before being transported and sold was called the dry fishery.

Article

Cape Kildare

Cape Kildare extends eastward into the Gulf of St Lawrence at the northern end of Prince Edward Island. Named by Samuel Holland in 1765 after James, 20th earl of Kildare, it is part of a series of capes in the area known as the Kildare Capes.

Article

Fossil Animals

The first animals were microscopic in size and left no known fossil remains. The oldest animal fossils occur in sediments deposited under shallow equatorial seas over 600 million years ago.

Article

Arachnida

Arachnida is a large class of chelicerate arthropods (segmented, jointed-limbed animals) including the orders Araneae, Scorpiones, Opiliones, Pseudoscorpiones, Solifugae and the subclass Acari.

Article

Salt

Sodium chloride (NaCl), or common salt, is ubiquitous in the environment. In its solid form, salt crystallizes as colourless cubes and is called rock salt. Salt is also known to geologists as halite. Its crystal structure was the first to be determined by X-rays.