Which of the following is not a heavy industry ?

Related Mcqs:

1. When electrons collide with heavy metals than ___________ are produced?

   A. Beta-rays
   B. Alpha-rays
   C. X-rays
   D. Gamma-rays

2. Traffic policemen on duty at busy street crossings during heavy traffic rush hours are advised to use:__________?

   A. Hydrogen tank
   B. Nitrogen tank
   C. Oxygen tank
   D. None of these

   Submitted by: Said wali shah

3. When benzene is substituted by halogens only which one of the following halogens only which one of the following halogens is given the number one position in the ring while writing the name of compound ?

   A. Bromine
   B. Chlorine
   C. Fluorine
   D. Iodine

4. Which of the following is a macro nutrient ?

   A. boron
   B. iron
   C. copper
   D. carbon

5. Which of the following is not a condition for the formation of smog ?

   A. sufficient NO
   B. sunlight
   C. less movement of air
   D. winds

6. In which of the following layer of atmosphere there is more thickness of ozone layer ?

   A. troposphere
   B. stratosphere
   C. mesosphere
   D. photosphere

7. Which one of the following makes the bulk of hydrospheres content ?

   A. oceans
   B. glaciers & icecaps
   C. fresh water lakes and ponds
   D. All have equal distribution

8. Which of the following is not a secondary pollutant_________________?

   A. ozone
   B. carbonic acid
   C. sulphuric acid
   D. carbon dioxide

9. Which of the following factors help to measure quallity of water ?

   A. DO
   B. BOD
   C. COD
   D. all of the above

10. Which of the following is used as water disinfectant to avoid the formation of toxic compounds_________________?

    A. Cl2
    B. O3
    C. ClO2
    D. both B & C