UPPSC 2025 | Earthworms Role in Soil & Anatomy | Farmer’s Friends Explained
Автор: Ankurit
Загружено: 2025-10-20
Просмотров: 18
Описание:
UPPSC PCS (Prelims) 2025 – Held on 12 Oct 2025 | Date: 21 / 10 / 2025
Question: With reference to ‘earthworms’, which of the following statements is/are correct? 1. They improve soil fertility and are known as farmer’s friends. 2. They have two pairs of hearts.
✅ Correct Answer: (d) Only 1 — Earthworms do improve soil fertility but they do not have just two pairs of hearts; they have around five pairs of aortic arches.
Explanation Summary:
Earthworms enhance soil structure, nutrient cycling and aeration, earning the title “farmer’s friends.” However, biologically they possess multiple aortic arches acting as hearts — typically five pairs — not two pairs. Verified from ecology and biology sources.
Official Verified Sources:
“Earthworms are farmers’ friends” – Cornucopia.org (2017)
“How earthworms help your soil” – DPI NSW Agriculture
Earthworm circulatory system – Study.com
“How many hearts does an earthworm have?” – Sciencing.com
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Hashtags:
#UPPSC #UPPCS #UPSC #SoilHealth #Earthworms #Agriculture #Biology #Ecology #ExamPreparation #Ankurit
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