Question 1: Describe two advantages of using a bar graph to display data about the population sizes of different cities.

Answer: Advantages include that bar graphs clearly show differences in size between categories, making comparisons easy, and they can display data for multiple categories side by side for quick visual comparison.

Question 2: A line graph shows the change in temperature over a year for a specific location. Explain what the slope of the line indicates about the temperature trend.

Answer: The slope indicates whether the temperature is increasing or decreasing over time. A steep slope suggests rapid change, while a gentle slope indicates a gradual change.

Question 3: You have collected data on weekly rainfall in millimeters for a month. How would you organize this data in a table? Provide a sample structure.

Answer: A suitable table would have columns labeled 'Week Number' and 'Rainfall (mm)'. Each row would record the rainfall amount for each week, e.g., Week 1 | 50, Week 2 | 60, etc.

Question 4: Explain the main difference between a pie chart and a bar graph in presenting data.

Answer: A pie chart displays data as proportions of a whole, showing how parts relate to the total, while a bar graph compares different categories directly with rectangular bars.

Question 5: Given a set of data showing the number of people living in different urban areas, suggest a suitable method for presenting this data and justify your choice.

Answer: A bar graph would be suitable because it allows easy comparison of population sizes across different urban areas.

Question 6: Draw a simple bar chart with four categories: 'Rural', 'Town', 'Suburban', and 'Urban'. Include sample data: 200, 400, 300, and 500 respectively. Label the axes appropriately.

Answer: A correct sketch would have the x-axis labeled with the four categories and the y-axis labeled 'Number of People' or 'Count'. The bars should reflect the data: Rural (200), Town (400), Suburban (300), Urban (500), with appropriate bar heights.

Question 7: You are given data on the average annual rainfall (mm) for three cities: City A (800mm), City B (600mm), City C (900mm). Which type of chart would best display this data and why?

Answer: A bar chart would be appropriate because it allows easy comparison of the rainfall amounts among the three cities.

Question 8: Explain how a scatter diagram can be useful in geographical data analysis.

Answer: A scatter diagram shows the relationship between two variables, helping to identify correlations or patterns, such as between rainfall and crop yields.

Question 9: Sketch a line graph showing the increase in population over five years with the following data: Year 1 - 50,000; Year 2 - 55,000; Year 3 - 60,000; Year 4 - 65,000; Year 5 - 70,000. Label the axes and key points.

Answer: A correct sketch would have the x-axis labeled 'Years' with marks for each year, and the y-axis labeled 'Population'. The plot points should be connected with a smooth or straight line showing an upward trend, with labels for each year’s population.