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

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

• A. Manure
• B. Irrigation
• C. Fertilizer
• D. Soil Exhaustion

Answer: (C)

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.

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.