KG-200 means Kampfgruppe 200- lit Battle Group 200. It is Army or Air Force, not a Naval Task Force which would be the equivalent .
1 ppm = 1 mass part per 106 mass parts:So 1 mg in 106 mg = 1.0*106 mg = 1.0*103 g = 1.0 kg200 ppm = 200 mg per kg, in water 1.0 kg = 1.0 LitreSo 200 mg/L
about 1500 poundsThe average adult elephant is 4.6 tons. But the weight varies depending on the different species.The African Elephant is the largest land animal, with males standing 3.2 metres or 10 ft to 4 metres or 13 ft at the shoulder. They weigh around 3,500 kilograms up to a reported 12,000 kilograms. The female is smaller, standing about 3 metres or 9.8 ft at the shoulder.Asian Elephants are not as large as their African cousins but can weigh around 5,400 kg and stand over 3.4 m or 11 ft tall