Question
Reena was counting down from 28. Sahil was counting
upwards the numbers starting from 1 and he was calling out only the odd numbers. What common number will they call out at the same time if they were calling out at the same speed ?Solution
Reema : 28 27 26 25 24 23 22 21 20 19 18 ….. Sahil: 1 3 5 7 9 11 13 15 17 19 21 23….. They will not call out 19 number.
The silk fibres are held together in cocoon by a substance known as……………………
Saline soils could be improved by:-
Largest soil order in world is
During a prolonged dry spell, a farmer notices soil crusting in the field. What could be a possible consequence of soil crusting on the crops?
What is soil sickness?
What is the primary function of humus in soil?
Which of the following groups of nutrients is absorbed by plants only in anionic form?
………………………….. is designed to break up hard layers or pans without bringing them to the surface.
...When the contact of soil moisture still decreased below the wilting point in way that the water is held very tightly & may be state of vapour around soi...
According to USDA classification of salt affected soils; a soil having EC >4 mmho/cm; ESP >15; pH
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