In what way does composting benefit gardens?

Composting benefits gardens primarily by enriching the soil with nutrients. When organic materials such as kitchen scraps, yard waste, and other biodegradable materials decompose, they break down into nutrient-rich compost. This compost not only improves soil structure, allowing for better aeration and water retention but also supplies essential nutrients such as nitrogen, phosphorus, and potassium. These nutrients are vital for plant growth, leading to stronger, healthier plants and potentially higher yields in garden produce.

The other options would not have beneficial effects for gardens; for instance, decorative elements do not contribute to plant health, increased soil toxicity can harm plant growth and the ecosystem, and attracting harmful pests can lead to plant damage and decreased garden productivity. Therefore, the primary advantage of composting is its ability to create a more fertile and productive growing environment.