Soil contamination is primarily caused by human activities such as industrial processes, mining, agriculture, and improper waste disposal.

Fertilizers are not typically considered soil contaminants because they are essential for plant growth and are applied to soils in controlled amounts.

Soil contamination can affect soil fertility by reducing the availability of nutrients to plants, increasing the acidity or alkalinity of the soil, and altering the soil structure and texture.

Soil contamination typically leads to reduced soil biodiversity, not enhanced soil biodiversity.

The primary goal of soil remediation is to remove or reduce soil contaminants, restore soil fertility and productivity, and prevent further contamination.

Fertilization is not a common soil remediation technique because it does not directly address the removal or reduction of soil contaminants.

In situ bioremediation involves the use of microorganisms to degrade and transform contaminants within the soil.

Phytoremediation utilizes plants to absorb and accumulate contaminants from the soil through their roots and store them in their tissues.

The cost of remediation is not a factor that directly influences the effectiveness of soil remediation.

A site assessment is conducted prior to soil remediation to identify the nature and extent of contamination, determine the appropriate remediation strategy, and assess the potential risks to human health and the environment.

FIFRA (Federal Insecticide, Fungicide, and Rodenticide Act) is not specifically focused on soil contamination management.

Attenuation refers to the natural reduction of soil contamination over time through various processes such as biodegradation, volatilization, and sorption.

Pesticides and fertilizers are not typically significant sources of heavy metal contamination in soils.

Sustainable soil management practices aim to maintain soil fertility and productivity, minimize soil contamination, prevent soil erosion, and promote overall soil health.

Healthy soil biodiversity is not a common indicator of soil contamination.