Question map
Consider the following description : 1. Annual and daily range of temperatures is low. 2. Precipitation occurs throughout the year. 3. Precipitation varies between 50 cm - 250 cm. What is this type of climate ?
Explanation
The correct answer is option D - Marine West coast climate.
Marine West Coast climate has small annual and daily ranges of temperature, precipitation occurs throughout the year, and precipitation varies greatly from 50-250 cm.[1] This matches all three characteristics given in the question.
While equatorial climates also have low temperature ranges and year-round precipitation, their precipitation is always above 150 cm (between 1,524 mm and 2,540 mm)[3], which doesn't match the wider range of 50-250 cm mentioned in the question. China type climate has a great annual temperature range[4], contradicting the first condition. Humid subtropical climate, while having annual precipitation varying from 75-150 cm[5] and small daily range of temperature[5], doesn't fully encompass the 50-250 cm precipitation range. Marine West Coast climate is located poleward from the Mediterranean climate on the west coast of continents, with main areas being Northwestern Europe, west coast of North America, southern Chile, southeastern Australia and New Zealand.[1]
Sources- [1] FUNDAMENTALS OF PHYSICAL GEOGRAPHY, Geography Class XI (NCERT 2025 ed.) > Chapter 11: World Climate and Climate Change > Marine West Coast Climate (Cfb) > p. 94
- [2] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 30: Climatic Regions > Precipitation > p. 425
- [3] Certificate Physical and Human Geography , GC Leong (Oxford University press 3rd ed.) > Chapter 15: The Hot, Wet Equatorial Climate > Glimate > p. 151
- [4] Certificate Physical and Human Geography , GC Leong (Oxford University press 3rd ed.) > Chapter 21: The Warm Temperate Eastern Margin (China Type) Climate > Climate > p. 199
- [5] FUNDAMENTALS OF PHYSICAL GEOGRAPHY, Geography Class XI (NCERT 2025 ed.) > Chapter 11: World Climate and Climate Change > Humid Subtropical (Cfa) Climate > p. 94
PROVENANCE & STUDY PATTERN
Guest previewThis is a 'Ctrl+F' question from NCERT Class XI Fundamentals of Physical Geography. The examiner lifted three sentences verbatim from the 'Marine West Coast Climate' paragraph. While conceptually 'Equatorial' feels close, the specific rainfall floor (50 cm) makes it impossible for a rainforest, serving as the technical differentiator.
This question can be broken into the following sub-statements. Tap a statement sentence to jump into its detailed analysis.
- Statement 1: Do equatorial climates have a low annual and low diurnal (daily) temperature range?
- Statement 2: Do equatorial climates receive precipitation throughout the year (year-round)?
- Statement 3: Is the typical annual precipitation in equatorial climates between 50 cm and 250 cm?
- Statement 4: Do China type climates have a low annual and low diurnal (daily) temperature range?
- Statement 5: Do China type climates receive precipitation throughout the year (year-round)?
- Statement 6: Is the typical annual precipitation in China type climates between 50 cm and 250 cm?
- Statement 7: Do humid subtropical climates have a low annual and low diurnal (daily) temperature range?
- Statement 8: Do humid subtropical climates receive precipitation throughout the year (year-round)?
- Statement 9: Is the typical annual precipitation in humid subtropical climates between 50 cm and 250 cm?
- Statement 10: Do Marine West Coast climates have a low annual and low diurnal (daily) temperature range?
- Explicitly describes equatorial climate as having great uniformity of temperature yearâround with mean monthly temperatures around 27°C and very little variation.
- States that diurnal range is small and annual range is also small, citing moderating factors like cloudiness and heavy precipitation.
- Explains that cloudiness, heavy precipitation and regular land/sea breezes moderate daily temperature, producing a narrow diurnal range.
- Notes mean diurnal and monthly temperatures remain around 27°C with very little variation, supporting low annual range as well.
- States that tropical humid (including equatorial) climates have a very low annual range of temperature due to the sun being overhead throughout the year and ITCZ influence.
- Links the low annual temperature variability directly to the equatorial/tropical location.
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