Multiple choice Standing 325 metres high, Roughusky Dam in the Soviet Union is the worlds highest Dam. Standing 325 metres high, Roughusky Dam in the Soviet Union is the worlds highest Dam. Roughusky Dam in Soviet Union which stands at 325 metres is the worlds highest Dam. The worlds highest Dam is the Roughusky Dam in the Soviet Union, which stands at 325 metres. The worlds highest Dam stands at 325 metres highest is the Roughusky Dam in Soviet Union. Roughusky Dam in Soviet Union is the highest Dam in the world standing at a highest of 325 metres. Reveal answer Fill a bubble to check yourself C Correct answer Explanation Although options (2) and (5) also seem correct, but they can be shortened further, hence (3) option uses the min words without changing the meaning. Hence (C) is the answer.