Describe the procedure which should be followed in spraying a crop in tomatoes using a fungicide in powder form, water and a knapsack sprayer.
Form two student put some soil sample in a measuring cylinder, added some water and sodium carbonate and then covered the cylinder with the hand and shook the cylinder for about two minutes. He left the cylinder on the bench for one hour. The result was as shown below.
Mention ONE feature of the Executive Secretariat of the Economic Community of West African States (ECOWAS).
Identify Two inventions which improved the textile industry in Britain during the eighteenth century.