Which is not an element of climate?

Correct answer: Population density

The direct answer is B, Population density. Climate describes the long-term pattern of atmospheric conditions in a place. Its elements include temperature, rainfall, humidity, air pressure, wind, and sometimes sunshine or cloud cover. Population density means the number of people living in a unit area. It is a social or demographic feature, not an element of climate. Option A, temperature, is a climatic element because it tells how hot or cold the air is. Option B is correct because population density tells us about people and settlement, not atmospheric conditions. Option C, rainfall, is a climatic element because it measures water falling from the atmosphere. Option D, wind, is also a climatic element because it describes moving air, including its direction and speed. Do not confuse a place’s population with its physical climate. Memory cue: climate elements describe air and water; population density describes people.