Download App

Natural Resources — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceNatural Resources1 Mark
MCQ
Topsoil contains the following:
  • A
    Humus and living organisms only.
  • ✓
    Humus and soil particles only.
  • C
    Humus, living organisms and plants.
  • D
    Humus, living organisms and soil particles.
✓

Answer

Correct option: B.
Humus and soil particles only.
Humus is dark, organic material that forms in soil when plant and animal matter decays. The thick brown or black substance that remains after most of the organic litter has decomposed is called humus. Earthworms often help mix humus with minerals in the soil. Humus contains many useful nutrients for healthy soil.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q. [1 M]" from Natural Resources→Natural Resources — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

Ribosomes are made up of:
→
Which of the following is a membrane enclosed organelle found in eukaryotic cells containing most of the cells genetic material?
→
Jaundice is a disease of:
→
Lysosome arises from:
→
Ozone hole means:
→
Find out the correct sentence about manure.
→
According to the third law of motion, action and reaction:
→
The ability of nitrogen fixation is found in:
→
Weeds affect the crop plants by:
→
The trait which is accounted for hybridization is:
→