Video Transcript. Hi everyone, Kevin Smith, TubaLove here, talking about different types of tubas. And when I say type, I'm talking specifically about the different types of keys that are available. This happens to be what's called a C tuba. They're also B flat tubas, and E flat, as well as F tubas.
Soil quality decline is one of the main causes of land degradation and is considered to be responsible for 84% of the ever diminishing acreage. Year after year, huge acres of land lost due to soil erosion, contamination and pollution.
Soil pollution. High concentration of toxic elements in soil can pose a high risk for human health and also to the ecosystem. A large number of organic and inorganic chemicals and waste from industries, farms, construction sites, automobiles and households can contribute to soil pollution.