1.   A number of hazardous substances are resistant to biodegradation.

2.   But before jumping to that conclusion it is worth pondering whether the weed is more resistant to husbandry practice rather than the herbicide.

3.   Managers have been resistant, but there has been a strong latent demand for telework.

4.   Polyester and polyamide yarns and fibres with ever-greater performance for competition suits as soft to the touch as they are resistant.

5.   The cysts survive well in cold water and are even resistant to chlorination.

6.   The germ, a strain of klebsiella which is resistant to most antibiotics, was found during routine screening.

7.   The rare perennial maize proved to be resistant to seven viral diseases that plague domesticated maize.

8.   The resources were too thin and the natives were too resistant.

9.   The result is a membrane that is resistant to water, weather, ultra-violet degradation, fire and chemical attack.