Which geographic factor is listed as influencing malaria transmission potential?

Which geographic factor is listed as influencing malaria transmission potential?

• A. Geography/topography
• B. Ocean currents
• C. Soil type
• D. Ambient noise

Answer: (A)

Geography and the shape of the land determine where mosquito habitats exist and how favorable the climate is for parasite development. Elevation, rainfall patterns, temperature ranges, and the location of water bodies create or limit standing-water breeding sites and influence how long vectors and parasites can survive. In areas with suitable geography, Anopheles mosquitoes thrive, temperatures stay warm enough for parasite development, and transmission potential rises. Conversely, rugged highlands or dry regions often have cooler conditions or fewer breeding sites, reducing transmission potential. The other options aren’t primary drivers of malaria risk: ocean currents can affect climate in coastal zones but aren’t a direct, consistent predictor of malaria transmission; soil type affects drainage locally but doesn’t define transmission potential broadly; ambient noise has no biological link to malaria ecology.

Geography and the shape of the land determine where mosquito habitats exist and how favorable the climate is for parasite development. Elevation, rainfall patterns, temperature ranges, and the location of water bodies create or limit standing-water breeding sites and influence how long vectors and parasites can survive. In areas with suitable geography, Anopheles mosquitoes thrive, temperatures stay warm enough for parasite development, and transmission potential rises. Conversely, rugged highlands or dry regions often have cooler conditions or fewer breeding sites, reducing transmission potential. The other options aren’t primary drivers of malaria risk: ocean currents can affect climate in coastal zones but aren’t a direct, consistent predictor of malaria transmission; soil type affects drainage locally but doesn’t define transmission potential broadly; ambient noise has no biological link to malaria ecology.