A photosynthesizing plant is releasing O more than the normal. The plant must have been supplied with

A photosynthesising plant is releasing .^(18)O more than the normal. The plant must have been supplied with

A photosynthesising plant is releasing .^(18)O more than the normal. The plant must have been supplied with

A photosynthesising plant is releasing .^(18)O more than the normal. The plant must have been supplied with

A photosynthesising plant is releasing ""^(18)O more than the normal . The plant must have been supplied with

If a photosynthesizing plant release oxygen containing more than normal amount of 180, it is concluded that the plant has been supplied with

Plants comprise not more than

Plants comprise not more than

Plants comprise not more than