Class IX

The micro-organisms which helps in formation of soil is
  1. bacteria
  2. moss
  3. lichen
  4. b and c
Greenhouse gases are
  1. Industries
  2. Rhizobium
  3. Lightening
  4. All of these
Nitrogen fixation can be done by
  1. Industries
  2. Rhizobium
  3. Lightening
  4. all of above
Molecules of proteins contain
  1. Carbon
  2. Nitrogen
  3. Oxygen
  4. All of these
Depletion of ozone molecules in the stratosphere is due to
  1. Chlorine compound
  2. Fluorine compound
  3. Halogen compound
  4. None of these
Time Elapsed

HR : MIN : SEC
Question Answered
0
Score out of 100
0

Get Started!

we provide the best
services to our students

AmazingCounters.com Views

 

LKG - 12th

Rs 1,999  Annual
Plan
TOP