5.Which of the following statements is /are incorrect ? i need help asap plss i ) Fats deposited in our body act as shock absorbers and protect us from injury

ii ) Kwashiorkar is caused by deficiency of protein , carbohydrates and fat .

iii ) Roughage neither releases energy nor helps in tissue of body building.

iv ) Starchh containing food item turns bluish black in colour on undergoing Iodine test.