The Kidneys Structure and Functions
The kidneys are bean-shaped organs located at the back of the abdominal cavity, one on each side of the spinal column. […]
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Integrated Science
Human Heart Structure and Functions
The Human heart is a hollow, muscular organ that pumps blood through the blood vessels by repeated, rhythmic contractions.
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The Stomach Structure and Functions
The stomach is a muscular, elastic, pear-shaped bag, lying crosswise in the abdominal cavity beneath the diaphragm. Its main purpose is digestion
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The intestines Structure and Functions
The intestines are located between the stomach and the anus and are divided into two major sections: the small intestine and the large intestine.
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Human Ear Brief anatomy
The ear is the organ of hearing. The outer ear protrudes away from the head and is shaped like a cup to direct sounds toward the tympanic membrane
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The nose and Sense of Smell
The nose is the organ responsible for the sense of smell. The cavity of the nose is lined with mucous membranes that have smell receptors
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ROCKS AND THE ROCK CYCLE
The rocks of the earth are very varied in composition, depending on the way they were formed and the time they were formed.
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4 Major Elements in the Components of Soil
There are four main component of soil, which are: those resulting from the-‘ breakdown of rocks, organic matter, water and air.
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Soil pH | SOIL ACIDITY AND ALKALINITY
Soil pH is a measure of the acidity vs the alkalinity of the soil, and determines the capacity of that soil to exchange nutrients with plants growing in it.
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Soil Fertility and its factors
Soil fertility is defined as the ability of the soil to produce and sustain high crop yields indefinitely.
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Causes and effects of Environmental Pollution in Zambia
Pollution can be defined as the introduction by man into the environment of substances that can adversely affect the health survival or activities
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SOIL EROSION AND CONSERVATION
Erosion may mean the wearing or washing away of something. Some of the forces which make soil can also erode the soil so that it is lost to the farmer.
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