Which of the following statements about the Equatorial region are corr

Which of the following statements about the Equatorial region are correct ?

  • 1. It is a megathermal region
  • 2. It is a sclerophyll region
  • 3. It is a region of high development
  • 4. It is a region of aerial streamlets

Select the correct answer using the code given below :

1 and 4
1 and 2 only
2, 3 and 4
1, 2 and 3
This question was previously asked in
UPSC CAPF – 2017
Statement 1 is correct: Equatorial regions are characterized by consistently high temperatures throughout the year, fitting the definition of a megathermal climate (often represented as Af in Köppen climate classification). Statement 2 is incorrect: Sclerophyll vegetation (hard, leathery leaves adapted to dry summers) is typical of Mediterranean climates, not the humid equatorial climate. Statement 3 is generally incorrect: While there are areas of development, equatorial regions often face geographical challenges (dense forests, climate-related diseases) which historically made widespread high development difficult compared to other regions, though this is a generalization. Statement 4 is likely interpreted as a region with abundant surface drainage or small streams due to very high rainfall, which is characteristic of equatorial rainforests. The term “aerial streamlets” is unusual but in context, refers to the extensive network of small watercourses resulting from high precipitation. Therefore, 1 and 4 are the correct statements.
Equatorial regions have megathermal climates (high temperature, high rainfall) and are characterized by dense drainage networks. They do not have sclerophyll vegetation, which is typical of Mediterranean climates.
Megathermal climates (Köppen Group A) have average temperatures of the coldest month above 18°C. Sclerophyll refers to vegetation with hard leaves, adapted to prevent water loss during prolonged dry periods, common in regions with dry summers. Equatorial regions are characterized by rainforests with dense vegetation and high biodiversity, supported by consistent high temperatures and rainfall. The term “aerial streamlets” is not a standard geographical term, but likely refers to the prevalence of small streams and drainage patterns easily visible, perhaps even from an aerial perspective, due to the high rainfall and terrain.
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