IGCSE Geography Agricultural Systems Practice Test 2026 - Free Practice Questions and Study Guide

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Which term refers to any substance used to make soil more fertile, including manure or nitrates?

Manure

Irrigation

Fertilizer

Fertilizer is the term for any substance added to soil to boost fertility by supplying essential nutrients. This includes organic materials like manure as well as inorganic compounds such as nitrates. Irrigation pertains to supplying water and doesn’t directly add nutrients, while soil exhaustion describes a state of nutrient depletion rather than a substance. Since the question asks for a word that covers manure, nitrates, and other nutrient sources, the best term is fertilizer.

Soil Exhaustion

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