Approximately 40% of the world's agricultural land is seriously degraded.

The educational infrastructure has been seriously degraded as a result of political and economic crises.

Since European settlement, the lower reaches of the creek have been seriously degraded by human activity.

Most of the territory is forest with some semi desert areas but both are seriously degraded.

It is estimated that up to 40% of the world's agricultural land is seriously degraded.

By the 1990s economic activity was declining and economic infrastructure had become seriously degraded.

They will convey information at a slow rate and in a manner that does not seriously degrade their detectability.

Thus increasing vibrations may appear up to levels which can seriously degrade the machined surface quality.

Although this improved the major problems, a number of unrelated issues continued to seriously degrade the overall performance of the telescope.

You guys are seriously degrading the value of the blog by publishing this kind of slanted content.