Let the speed of the current be x km/hr Rate Downstream = (x+ 50) km/hr According to the question 120/(x+50) = 1 hour 30 minutes 120/(x+50) = 3/2 240 = 3x + 150 x= 30 km/hr Rate upstream = 50 – 30 = 20 km/hr Required time = 120/20 = 6 hours
What is the deficiency symptom for Magnesium in plants?
A dairy cow held for breeding and production purposes is known as:
Which soil pH range is considered optimal for the availability of phosphorus for plant growth?
Match the following:
1.        Mitochondrion:                              A- Suicidal bag
2. Â...
Known as a 'wonder crop' for its high nutritional value, particularly its protein content, which legume is widely regarded as an affordable source of pr...
The bollworm which covers the opening once it enters into the boll is?
The alcohol content of wine during fermentation and the ripeness of fruits before harvesting is assessed by using a:
Who is often referred to as the father of microbiology and observed bacteria and protozoa using microscopes?
Which of these resistances is contributing maximum to the gas exchange in leaves?
Leghaemoglobin is a pigment present in:
