Which nutrient deficiency causes yellowing of leaves in crops? MCQ with Answer and Explanation

Question Report Error

Which nutrient deficiency causes yellowing of leaves in crops?

A. Nitrogen

B. Potassium

C. Iron

D. Both Nitrogen and Iron

Answer: Option D

Solution (By JKExamLibrary)

Deficiency of nitrogen or iron can lead to chlorosis, causing leaves to turn yellow.

This question belongs to: Geography GK Soils of India

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Question #1 Report Error

Which process leads to the hardening of laterite soil when exposed to air?

A. Calcification

B. Oxidation

C. Humification

D. Salinization

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Correct Answer: Option B

Explanation:
Laterite soil hardens irreversibly due to oxidation when exposed to the atmosphere.

This question belongs to: Geography GK Soils of India

Question #2 Report Error

Which soil is found in coastal India?

A. Black soil

B. Red soil

C. Alluvial soil

D. Desert soil

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Correct Answer: Option C

Explanation:
Alluvial soil is common in coastal river deltas of India.

This question belongs to: Geography GK Soils of India

Question #3 Report Error

Which soil type develops under alternate wet and dry conditions in tropical climates?

A. Saline Soil

B. Black Soil

C. Mountain Soil

D. Peaty Soil

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Correct Answer: Option B

Explanation:
Black soils form in tropical climates with distinct wet and dry seasons.

This question belongs to: Geography GK Soils of India

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