Animal Nutrition

ANIMAL NUTRITION The food given to farm animal is generally known as livestock feed simply feed. Farm animal need feed […]

SS3 Second Term Agricultural Science Senior Secondary School

Welcome to Stoplearn.com online secondary school 3 SS3 second term.  Here you can learn Agriculture for Senior Secondary School  online […]

Meaning of livestock parasite

A parasite is an organism living in or on another organism call the host. The host is usually bigger and […]

compounds of sulphur with hydrogen

Hydrosulphuric acid (H2S). This substance is a gas having the composition expressed by the formula H2S and is commonly called […]

Suphur and it’s compound

Sulfur belongs to the chalcogen family. Other members of the family are oxygen, selenium, tellurium, and polonium. These elements make […]

Compounds of Nitrogen

Nitrogen has 5 electrons in its valence shell. It has a valency of 3 with respect to hydrogen and a […]

Nitrogen and it’s properties

Nitrogen, which makes up about 78% of our atmosphere, is a colorless, odorless, tasteless and chemically unreactive gas at room […]

The Halogens

There are six elements in Group VIIA, the next-to-last column of the periodic table. As expected, these elements have certain […]

Oxygen and it’s compound

Oxygen is the most abundant element on earth. It is found almost in everything in nature and also in free […]

History of hydrogen

Hydrogen comes from Greek meaning “water producer” (“hydro” =water and “gennao”=to make). First isolated and identified as an element by Cavendish […]