Final answer:
Organic fertilizer is composed of materials found in nature, such as animal manure and compost, and is beneficial for soil health and biodiversity.
Step-by-step explanation:
The true statement about organic fertilizer is that it is composed of materials found in nature. Organic fertilizers come from plant or animal sources and include substances like compost, manure, bone meal, and other naturally derived materials. Unlike synthetic fertilizers, which are artificially produced and may contain concentrated sources of nutrients like nitrogen and phosphorus, organic fertilizers release nutrients more slowly into the environment. This gradual process supports soil health, increases biodiversity, and contributes to a balanced ecosystem. Furthermore, in organic agriculture, the use of synthetic pesticides and fertilizers is generally prohibited to maintain natural ecosystem interactions and promote soil fertility.
Organic fertilizer is composed of materials found in nature, such as plant wastes, animal wastes, compost, and treated sewage sludge. It is derived from living or formerly living materials and does not involve the use of synthetic fertilizers or pesticides. Organic fertilizers contain lower concentrations of nutrients compared to synthetic fertilizers, but they contribute to building healthy soil, improving soil structure, and promoting biodiversity in the ecosystem.