Question
A man rows a boat 72 kms in 5 hours downstream and
returns upstream in 12 hours. The speed of the stream (in km per hour) is:Solution
Rate downstream = 72/5 = 14.4 km/hr Rate upstream = 72/12 = 6 km/hr Now, speed of the stream = (rate downstream – rate upstream)/2 ⇒ (14.4 – 6)/2 = 4.2 km/hr
The element which becomes deficit in acidic conditions ___
Toxicity of which element leads to the unavailability of iron and zinc
The soil amendment used for the reclamation of Sodic soil is
Match the following:
1. Soil moisture tension ...
The silk fibres are held together in cocoon by a substance known as……………………
Every year to raise awareness about the importance of soil quality for food security, healthy ecosystems, and human well-being, World soil day is cele...
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...
Which horizon of the soil profile is the zone where dominant features include the accumulation of clay, iron, aluminum, or humus, alone or in combination?
Which seed class has the minimum genetic purity requirement of 99%?
The ESP of saline soils is _____%
