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The study of plant life is organized in 3 ways, which are also applicable to zoological material.

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.

Motor vehicle registration figures appear for the first time in The Canada Year Book for 1916-17. It was in this year that the Year Book accorded motor vehicles a new status as the most important means of transportation in Canada.

Canadian agriculture changed rapidly between 1850 and 1900, and changes in agricultural implements both caused and reflected changes in other sectors.

In Canada the 2 basic methods of producing electric power are hydroelectric generation, based on the energy contained in flowing water, and thermal generation, based on the production of steam.

Thanks to the progress that had been made in identifying and mapping the Palaeozoic rocks (570-245 million years old) of western New York and northern New England, Logan was able to establish the broad correlations of the formations in the St Lawrence region.

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

An agreement signed with the US National Aeronautics and Space Administration (NASA) led to the launching of a series of 4 Canadian satellites, beginning with Alouette 1 (on 29 Sept 1962) from the Western Test Range in Vandenburg, California.

A wildlife preserve is an area of land or water set aside from at least some forms of development or recreational use, particularly from industrial use, hunting and motorized recreation, to protect wildlife and their habitats.

Humidity is related to the amount of moisture or water vapour in the air. Although invisible, water vapour is always present in the atmosphere.

Canada's first highways were the rivers and lakes used by Indigenous people, travelling by canoe in summer and following the frozen waterways in winter. The water network was so practical that explorers, settlers and soldiers followed the example of the Indigenous peoples.

"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.

From descriptive beginnings as the geography of the sea, oceanography has matured into a quantitative and multidisciplinary science bringing together experts from many basic fields.