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Introduction to bacteria
Introduction to bacteria
The two YouTube videos provide an indication of the differences in dairy farming between Tanzania and South Australia.
This YouTube video delves into the impact that tourism can have on a country's economy.
This YouTube video delves into the impact that tourism can have on the environment.
This podcast (audio) file explains how electric current can be obtained from the sun through the solar panel using direct illumination of the sun rays
Electrical devices convert the electrical energy carried by the charges into other types of energy such as heat, sound, and motion. Components in the appliance resist the flow of charge and are referred to as resistors. In this unit1 you will understand what resistance is, the factors that affect the resistance and the relationship between resistance and current.
This YouTube video explains how river basins are formed.
This 20 minute YouTube video explores the differences between small and large scale agriculture and the uses of each.