New ! Biology MCQ Practise Tests



12th Standard English Medium Biology (Zoology) Subject Environmental Issues Book Back 1 Mark Questions with Solution Part - II

12th Standard

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Biology

Time : 01:00:00 Hrs
Total Marks : 5

    1 Marks

    5 x 1 = 5
  1. Which among the following always decreases in a Food chain across tropic levels?

    (a)

    Number

    (b)

    Accumulated chemicals

    (c)

    Energy

    (d)

    Force

  2. In the E- waste generated by the Mobile Phones, which among the following metal is most abundant?

    (a)

    Copper

    (b)

    Silver

    (c)

    Palladium

    (d)

    Gold

  3. The Hydrochlorofluorocarbons (HCFCs) are the compounds which have the following molecules:

    (a)

    Hydrogen

    (b)

    Carbon

    (c)

    Chlorine

    (d)

    Fluorine

  4. SMOG is derived from:

    (a)

    Smoke

    (b)

    Fog

    (c)

    Both (a) and (b)

    (d)

    Only A

  5. Excess of fluoride in drinking water causes:

    (a)

    Lung disease

    (b)

    Intestinal infection

    (c)

    Fluorosis

    (d)

    None of the above

*****************************************

Reviews & Comments about 12th Standard English Medium Biology (Zoology) Subject Environmental Issues Book Back 1 Mark Questions with Solution Part - II

Write your Comment