Question Detail Leukemia is a disease of the ? lungsbloodliverbrain Answer: Option B Similar Questions : 1. On an average how many litres of blood a human body have ? 2-3 litre5-6 litre8-10 litre12-14 litre Answer: Option B 2. The richest source of vitamin D is CheeseMilkSpinachCod liver oil Answer: Option D 3. Which among the following kinds of lenses are used to treat Astigmatism ? Concave LensConvex LensBifocal LensCylindrical Answer: Option D 4. Rubber is obtained from ? cell saplatexgunresin Answer: Option B 5. Which crop helps in nitrogen fixation ? MaizeBeansPotatosRice Answer: Option B Read more from - Biology Questions Answers