81.   Some plants are already used to remove other pollutants from the environment, a process known as phytoremediation.

82.   Tehran denies any such plans and says the plant will be used only to generate power.

83.   The plants are largely used for seasonal production.

84.   The plant could be used to manufacture weapons-grade uranium.

85.   The plant had been used for reprocessing spent fuel from nuclear power plants and for research.

86.   The simplest is using plants such as grass as a barrier to cover up contaminated soil.

87.   The United States claims the technology could be used to develop nuclear weapons, but Moscow and Tehran say the plant can be used only for civilian purposes.

88.   The United States claims the Russian technology could be used to develop nuclear weapons, but Moscow and Tehran argue the plant can be used only for civilian purposes.

89.   The United States has bitterly protested the deal, claiming Iran plans to use the plant to develop a nuclear weapon.

90.   The United States has strongly protested the deal, claiming Iran could use the plant to produce atomic weapons.