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Term: ammonia


Topics from Topodia matching the term "ammonia"
Physiology is concerned with the functioning of plants. This is largely interactions between plants and their environments. As such plant physiology bridges the gap between biochemistry and ecology.

Chemical Engineering

This category is a combination of company listings and informational/resource Web sites for Chemical Engineering.

The main Engineering category page contains only listings of informational/resource web sites of interest to Engineers. Informational resources specific to a certain Engineering field are listed under that sub-category.

No companies are listed directly under Engineering, but are listed in their most appropriate subcategories of Engineering, such as Engineering:Chemical.

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If you do not see a subcategory that you think should be included included in Business:Industries:Engineering,
please email an Editor in the Business: or Business/Industrial_Goods_and_Services section and ask them to consider including the new subcategory. (You may find a list of editors at the bottom of the category pages.)

The study of all elements and compounds of elements except for carbon.
The alkali metals are the elements in group 1 of the periodic table excluding hydrogen, that is: lithium, sodium, potassium, rubidium, caesium, and francium.
Poisonous substances (both natural and man-made) are common, and frequently cause illness or disease if not properly stored and handled.