Reconnaissance soil survey carried out to produce maps for planning in all the states of the country is at the scale of-

The most widely used vegetation index is

Which one of the following is the active factor of soil formation?

The highest category of soil classification system is

The essentiality of Molybdenum was discovered by

Resource Conservation Technologies include: A) Zero or Minimum Tillage B) Direct Seeding C) Bed planting with residue mulch