What is the major source of phosphorus in soil? MCQ with Answer and Explanation

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What is the major source of phosphorus in soil?

A. Rainwater Only

B. Weathering of Rocks

C. Atmosphere

D. Sunlight

Answer: Option B

Solution (By JKExamLibrary)

Phosphorus enters soil mainly through the weathering of phosphate-bearing rocks.

This question belongs to: Geography GK Soils of India

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Question #1 Report Error

The major parent rock of black soil is:

A. Limestone

B. Sandstone

C. Granite

D. Basalt

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Correct Answer: Option D

Explanation:
Black soil develops from weathering of basaltic lava flows.

This question belongs to: Geography GK Soils of India

Question #2 Report Error

What is the major cause of soil erosion in the Shivalik Hills?

A. Deforestation

B. Earthquakes

C. Volcanic activity

D. Tides

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Correct Answer: Option A

Explanation:
Deforestation exposes soil to rainfall and runoff, causing severe erosion.

This question belongs to: Geography GK Soils of India

Question #3 Report Error

Which soil is generally deficient in nitrogen and humus?

A. Mountain Soil

B. Red Soil

C. Black Soil

D. Alluvial Soil

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Correct Answer: Option B

Explanation:
Red soil is generally poor in nitrogen, phosphorus, and humus but rich in iron compounds.

This question belongs to: Geography GK Soils of India

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