Tehran 15 March_The Iranian Army will start countrywide drills on Sunday to prepare itself against biological warfare amid an outbreak of the novel coronavirus, which has so far killed over 600 people.
TEHRAN, August 20 - Like humans, plants have a circadian rhythm, or biological clock. Scientists suggest that following plant circadian rhythms when making decisions on herbicide application could require less of the chemicals and make them more effective.
China has banned exports to North Korea of technologies and goods that could be used to make missiles and nuclear, chemical and biological weapons, the government said, as it moves to comply with UN resolutions.