The kidneys are bean-shaped organs located at the back of the abdominal cavity, one on each side of the spinal column.…
The Human heart is a hollow, muscular organ that pumps blood through the blood vessels by repeated, rhythmic contractions.
The stomach is a muscular, elastic, pear-shaped bag, lying crosswise in the abdominal cavity beneath the diaphragm. Its main purpose is digestion…
The intestines are located between the stomach and the anus and are divided into two major sections: the small intestine…
The ear is the organ of hearing. The outer ear protrudes away from the head and is shaped like a…
The nose is the organ responsible for the sense of smell. The cavity of the nose is lined with mucous…
The rocks of the earth are very varied in composition, depending on the way they were formed and the time…
There are four main component of soil, which are: those resulting from the-' breakdown of rocks, organic matter, water and…
Soil pH is a measure of the acidity vs the alkalinity of the soil, and determines the capacity of that…
Soil fertility is defined as the ability of the soil to produce and sustain high crop yields indefinitely.
Pollution can be defined as the introduction by man into the environment of substances that can adversely affect the health…
Erosion may mean the wearing or washing away of something. Some of the forces which make soil can also erode…