Photography here has now been banned, to prevent further degradation of the frescoes.

Black and green tea extracts would efficiently prevent degradation of proteins.

Richard Grove has pointed out that "States will act to prevent environmental degradation only when their economic interests are threatened".

It is advisable to change monofilament line at regular intervals to prevent degradation.

It focuses on preserving nature and preventing environmental degradation.

Prevent degradation by keeping volumes of tourists within maximum acceptable limits.

We understand this to mean that business activities should promote sustainable development and prevent environmental degradation and waste of resources.

Richard Grove said, "states will act to prevent environmental degradation only when their economic interests are shown to be directly threatened."

Current European legislation does not appear to prevent degradation of the soil.

It is highly soluble in water, but should be dissolved only immediately before use to prevent degradation.