What are the sources of toxic substances in the lithosphere?
The lithosphere can accumulate toxic substances from both natural and anthropogenic sources. Natural sources include volcanic eruptions, weathering of rocks, and soil erosion, which can release heavy metals such as arsenic, lead, and mercury into the environment. Anthropogenic activities like mining, industrial processes, and agricultural practices contribute significantly to the presence of toxic substances in the lithosphere. These activities can lead to the contamination of soil and groundwater, posing risks to ecosystems and human health.
