Question 1: You have recorded the temperature in a city over a week. The temperatures (in °C) are: 15, 17, 16, 18, 20, 19, 21. Create a line graph to represent this data. Label the axes appropriately.

Answer: A line graph with the x-axis labeled 'Day of the Week' (Monday to Sunday) and the y-axis labeled 'Temperature (°C)'. Plot points for each day at the corresponding temperature and connect them with a line.

Question 2: Describe how a bar chart could be used to compare the population sizes of five different countries. Include what information should be on the axes.

Answer: A bar chart would have the countries listed along the x-axis and their population sizes along the y-axis. Each country would be represented by a bar, with the height proportional to its population, allowing easy comparison.

Question 3: You are given data on the average rainfall (mm) in four different months: January (80mm), February (60mm), March (100mm), April (50mm). Present this data in a suitable way and explain why you chose that method.

Answer: A suitable method is a bar chart with months on the x-axis and rainfall (mm) on the y-axis. This visually compares rainfall amounts across months, making patterns easy to see.

Question 4: Draw a pie chart to represent the following data: 40% of the land is forest, 25% is urban, 15% is agriculture, and 20% is water bodies. Label each sector clearly.

Answer: A circle divided into four sectors with angles proportionate to the percentages. Each sector labeled as 'Forest', 'Urban', 'Agriculture', and 'Water Bodies'. The sectors' sizes reflect the percentage data.

Question 5: Explain how a scatter graph can be used to investigate the relationship between altitude and temperature in a mountainous region.

Answer: A scatter graph plots altitude on the x-axis and temperature on the y-axis. Each point represents a measurement at a specific altitude. A pattern showing temperature decreasing as altitude increases can be analyzed.

Question 6: You collected data on the number of tourists visiting five different coastal towns. The figures are: Town A (1500), Town B (2300), Town C (1800), Town D (2000), Town E (1700). Present this data graphically and justify your choice.

Answer: A bar chart with towns on the x-axis and tourist numbers on the y-axis. This method clearly compares the visitor numbers across towns, highlighting which towns are more popular.

Question 7: Sketch a simple table to record the following data: the height (in meters) of five different trees in a park.

Answer: A table with two columns labeled 'Tree Number' and 'Height (m)'. Rows for Tree 1 to Tree 5, with space to fill in the height measurements.

Question 8: Describe how you would present data showing the percentage of land used for farming, housing, industry, and recreation in a city. Include which type of graph would be most effective and why.

Answer: A pie chart would be effective because it clearly shows the proportion of land used for each purpose in relation to the whole city, making it easy to compare sizes visually.