What is a transistor?
Explain how a transistor behaves as a switch
Explain the term poultry
Reasons for keeping poultry
Explain the following
Population
Species
Habitat
Ecosystem
Explain
Ionic and convalent bonding. ..give examples
Explain the following terms as applied in sound waves
Frequency
Pitch
Loudness
What is crop rotation ?
Two advantages of crop rotation
Define pollination
Three advantages of wind-pollinated flower
Define respiration?
Name the products of the following process
Aerobic respiration
Anaerobic respiration
Fermentation
Define
Polymerization
Isomers
What are ornamental plants?
Uses of ornamental plants
What is meant by soil erosion?
Two effects of soil erosion in agricultural productivity
What is eclipse of the sun?
differentiate between umbra and penumbra eclipse
Define the following terms
Acid
Base
Indicators
State the difference between normal and acidic salt,with two examples each
Difference between hay and silage
State three difference between a beef cattle and a diary cattle
Differentiate between relative density and density.
Describe how density is measured.
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