Question 1: What is a Geographic Information System (GIS)?

Answer: A computer-based tool that captures, stores, analyzes, and displays geographical data.

Question 2: Define spatial data and give an example.

Answer: Data that represents the geographic location of features, such as the location of roads or rivers.

Question 3: What is remote sensing?

Answer: The use of satellite or aerial imagery to collect information about the Earth's surface.

Question 4: Name two applications of GIS in urban planning.

Answer: Site selection for new developments and traffic management.

Question 5: Explain what geospatial data analysis involves.

Answer: The process of examining spatial data to identify patterns, relationships, and trends.

Question 1: Which city uses GIS extensively for flood risk management?

Answer: London

Question 2: Name the satellite technology primarily used in remote sensing.

Answer: LiDAR or multispectral sensors

Question 3: What type of data is primarily used in GIS for urban planning?

Answer: Spatial data

Question 4: Describe one way GIS has improved disaster response in coastal cities.

Answer: GIS allows rapid mapping of affected areas, helping emergency services allocate resources efficiently during floods or hurricanes.

Question 1: In London, GIS is used to optimize public transportation routes. What are two benefits of this application?

Answer: Reduced travel times and improved accessibility for residents.

Question 2: Lagos faces rapid urban growth. How does GIS assist city planners in managing this expansion?

Answer: By mapping land use, monitoring infrastructure development, and planning for sustainable growth.

Question 3: Identify one challenge Lagos faces when implementing GIS technology.

Answer: Limited access to reliable data and technical expertise.

Question 1: Explain why remote sensing is crucial for environmental monitoring in urban areas like London.

Answer: Remote sensing provides up-to-date imagery that helps detect pollution, deforestation, and urban sprawl, supporting sustainable management.

Question 2: Analyse the causes of increased urban heat island effects in cities using GIS data.

Answer: Concentrated infrastructure, reduced green spaces, and human activities increase temperatures; GIS helps identify hotspots for mitigation.

Question 1: To what extent has GIS improved urban planning and disaster management in London?

Answer: GIS has significantly enhanced urban planning by enabling precise land use mapping and infrastructure development. In disaster management, GIS facilitates real-time hazard mapping and response coordination. However, challenges such as data privacy concerns and technological costs limit its full potential. Overall, GIS has been a transformative tool in London's urban and disaster planning strategies.