Examlex
If you discover that the opportunity cost of raising your economics grade is zero, you
Terracing
The practice of creating flat platforms on sloped land, often used in agriculture to reduce soil erosion and support water conservation.
Water Pollution
The contamination of water bodies (e.g., lakes, rivers, oceans, aquifers) by harmful substances or heat, negatively affecting aquatic ecosystems and human health.
Agricultural Chemicals
Substances such as fertilizers, herbicides, and pesticides used in farming to enhance plant growth and protect crops from pests and diseases.
Sediment
Particulate matter that settles at the bottom of a liquid or is transported by water, wind, or ice.
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