The effect of today’s radioactive fallout will probably be more harmful to children of future generations than to children now living because:

Related Mcqs:

1. The most harmful effect of ionising radiations precisely involves:

   A. Cell membranes
   B. DNA
   C. Mitochondria and ribosomes
   D. Nucleus

2. Forest fires cause millions of rupee of damage each year to the forest. Within the span of a few hours, hard work of generations of forest officers can be ruined. Causes of fires is / are :

   A. Burning of grass and undergrowth along patches frequented by villagers for easy passage
   B. Burning to facilitate the collection of minor produce
   C. Burning of grass by graziers for the sake of the tender grass, which comes up after a fire
   D. Fires caused by sparks from locomotive engines passing through the forest
   E. All of the above

3. Most harmful heavy metals causing water pollution:

   A. Pb, Hg, Cr, Cd
   B. P,Mn,B,Mg
   C. N,K,Mo
   D. Zn,Mo,Mg,Ag

4. The most harmful pesticide is:

   A. PAN
   B. 2,4,5-T
   C. 2,4-D
   D. DDT

5. A very harmful fibrous component causing pollution an inflicting diseases of lungs in human beings:

   A. Grease
   B. Asbestos
   C. Eichhornia roots
   D. ABS micelle

6. The most harmful component of detergents causing water pollution is:

   A. Linear alkyl sulphonate
   B. Sulphates and phosphate
   C. Alkyl benzenes sulphonate
   D. None of these

7. CO is harmful to human being because:

   A. It decreases CO2 concentration
   B. It competes O2 to combine with haemoglobin
   C. It is carcinogenic
   D. It depletes O3 layer

8. Harmful effects can also result from:

   A. Pruning trees that are growing very slowly
   B. Removing large branches
   C. Eliminating too much of the live crown
   D. Committing similar errors of judgment
   E. All of the above

9. Through food chain radioactive Sr (Sr90) is deposited in which part of human body?

   A. Kidneys
   B. Thyroid
   C. Bones
   D. Muscles

10. The following radioactive isotopes are formed by nuclear fission:

    A. Sr90, I131
    B. Cr51, Cu64
    C. Zr95, Mn54
    D. All of these