PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

Book Free Demo
Read the statement and select the correct answer:
 
A)
Statement 1: Nitrogen supports combustion.
Statement 2: Carbon dioxide supports combustion.
 
B)
Statement 1: We can feel and see the air.
Statement 2: We can feel air but cannot see it.
 
C)
John poured some water on a glass beaker containing a lump of dry soil. After some time, he observed some air bubbles in the soil. This is due to
Statement 1: The presence of air in the soil.
Statement 2: The presence of microorganisms.