Voice is a term that is used to explain whether the performer of an action comes before the action (verb) […]
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A conditional sentence has at least two clauses, one beginning with if (or ‘unless’ which means ‘if …. Not’) Examples: […]
PRODUCTION Sound waves are produced by vibrating objects. Some of the source of sound are talking, shouting, beating, beating drums, […]
White light has a band of wavelengths of different colours. This is called the spectrum colours. Red light has the […]
LENSES: Lenses are used as magnifying glasses. They are also used in microscopes, telescopes, cameras and projectors. The human eye […]
When a shell of a hollow sphere of glass is made out of a piece of glass and then silvered, […]
MEAN: The arithmetic mean of grouped frequency distribution can be obtained using: Class Mark Method: X = ∑fx/∑f where […]
Motion Under Gravity in Two Dimensions: If a particle is projected with an initial velocity u at angle θ to the […]
Mineral Products Mineral products are natural resources that can be regarded as free gift of nature. Most resources are housed […]