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.
Causes and effects of water quality degradation. Understanding and predicting the sources of contaminants, developing technologies to clean up the sources, and understanding the consequences of water quality degradation for aquatic ecosystems and human use of waterways.auses and effects of water quality degradation. Understanding and predicting the sources of contaminants, developing technologies to clean up the sources, and understanding the consequences of water quality degradation for aquatic ecosystems and human use of waterways.