A.In the soil
B.In the water
C.As ectoparasites
D.As endoparasites
Related Mcqs:
- Earthworms increase fertility of soil by:
- Earthworms are beneficial for human begins because:
- The rdioactive fall out contaminates:?
- Plants growing near sea shore will usually have xerophytic characters, like thick leaves, because:?
- Excessive application of synthetic fertilizers often causes shrivelling of the roots and wilting of the plant. This is because
- Spraying of DDT on crops produces pollution of?
- The disadvantage of ploughing in arid and semi-arid zones is:
- Protective (environment) are:
- Spraying of DDT on crop produces pollution of:?
- The unit of total water content of the soil is known as __________?
