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Speed of downstream = D/T = 30 × (60/45) = 40 km/hr The ratio of the speed of the boat in still water to the speed of the stream = 5: 3 (5x, 3x) => 8x = 40 => x = 5 Speed of upstream = 5x – 3x = 2x = 10 km/hr Distance = 25 km Time = D/S = 25/10 = 2(1/2) hr = 2-hour 30 min
Agricultural fields which are used as rainfed storage structures called?
‘Heart rot’ in Sugarbeet and ‘water core’ in turnip are the deficiency symptoms of:
Possible reasons for seed dormancy is:
A bacteriophage genome integrated into the circular bacterial chromosome is known as
Hydromorphic soils are evolved by which of the following process?
What is the unit of SAR (sodium adsorption ratio)?
In maize crop, use of atrazine for weed control in maize has resulted in invasion of maize fields by _____
Herbicide A and herbicide B was applied on plot I and plot II respectively. The weed index of plot I is 70 % and Plot II is 73 %. What are the inference...
The pump used in the windmill may be of
This method uses microwaves and silica gel for fast and effective flower drying