The Key to Preventing Soil Erosion by Water on Both

question 13

Multiple Choice

The key to preventing soil erosion by water on both farmland and landscaping job sites is ____.

• A) To keep the soil surface covered with vegetation.
• B) To provide adequate surface and subsurface drainage.
• C) To grade or till the soil until a smooth surface is achieved.
• D) To keep the soil moist (with irrigation if necessary).
• E) To practice good landscape sanitation by clearing away any weeds and old plant residues.

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Definitions:

Purely Competitive

A market structure characterized by many participants offering identical products, where no single buyer or seller can influence the market price.

Economic Profits

The excess of total revenue over total costs, including both explicit and implicit costs, as calculated in economic theory.

Normal Profits

The minimum level of profit necessary for a company to remain competitive in the market, essentially covering opportunity costs but not generating excess profit.

Purely Competitive

A market structure characterized by many buyers and sellers, free entry and exit, and a homogeneous product, leading to price-taking behavior.