Which climate is defined by heat-dominant problems and an annual mean temperature not less than 20 deg C?

Which climate is defined by heat-dominant problems and an annual mean temperature not less than 20 deg C?

• A. Tropical climate
• B. Temperate climate
• C. Desert climate
• D. Polar climate

Answer: (A)

Heat-dominant conditions and a consistently warm year are what define tropical climates. When the annual mean temperature is not less than 20°C, it means warmth persists across all months, so there isn’t a genuine cold season to relieve heat stress. That constant heat with enough moisture or humidity leads to heat-dominant problems that tropical regions experience, shaping both living conditions and design needs. Temperate climates have cooler winters, pulling the average below 20°C, so they don’t meet the threshold. Desert climates can reach very high daytime temperatures, but they don’t guarantee a year-round warm average and are also defined more by very low rainfall. Polar climates stay cold most of the year, with mean temperatures far below 20°C.

Heat-dominant conditions and a consistently warm year are what define tropical climates. When the annual mean temperature is not less than 20°C, it means warmth persists across all months, so there isn’t a genuine cold season to relieve heat stress. That constant heat with enough moisture or humidity leads to heat-dominant problems that tropical regions experience, shaping both living conditions and design needs.

Temperate climates have cooler winters, pulling the average below 20°C, so they don’t meet the threshold. Desert climates can reach very high daytime temperatures, but they don’t guarantee a year-round warm average and are also defined more by very low rainfall. Polar climates stay cold most of the year, with mean temperatures far below 20°C.