HD Quiz powered by harmonic design
#1. An intersection of column and a row is called
#2. ______________ are tools used by a blacksmith
#3. The process of transforming a used material in another form is known as
#4. The class of lever of a __________ is the Second Class Lever"
#5. Which from the list is not a domestic tool produced by a blacksmith
#6. A storage unit of computer is called ________
#7. The transfer of Pollen Grains from anthers to the stigma is called ____________
#8. The ______________ is a gaseous layer that protect us from harmful rays from the sun.
#9. The consequence of SULFUR DIOXIDE in atmosphere is to
#10. The consequence of SMOKE ND DUST is to __________________________
#11. The common sources of air pollutants are the following except
#12. ____________ is the introduction of pollutants in the environment
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