2020Which of the following methods of irrigation is most efficient in terms of water conservation?See more
2020An oven dried soil sample of mass 8g had a mass of 1.6g after it was completely burnt. Determine the percentage of humus in the soil sample.See more
2020Water which rises above the water table in the soil and is held in fine medium pores between soil particles by surface tension is?See more
2020Which factor of production has the following characteristics?I.Free gift of nature II.Limited in supply III.ImmobileSee more