List of top Physical Sciences Questions on Water Management

Which of the following manure has the highest content of Nitrogen?
Pitcher irrigation is NOT suitable for
Rate of flow of water through a porous medium under unit hydraulic gradients is known as
Which of the following statement(s) is/are true for tensiometer?
A. It measures soil water matric potential
B. It is simple in operation and very useful for scheduling irrigation
C. It can also be used for measuring soil water flux
D. Although limited to $<$ 1 bar matric potential, this range can be increased by increasing permeability of its porous cup
Choose the correct answer from the options given below:
Saturated hydraulic conductivity is measured in the field by
What is the percentage of freshwater used in agriculture globally?
Evapotranspiration is directly measured by
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A : Mulch conserves soil moisture
Reason R : Mulches cut off solar radiation falling on soil surface and reduce evaporation
In light of the above statements, choose the correct answer from the options given below
Which of the following crops has minimum water requirement?
The size of a Micro Watershed is
Identify the series with decreasing order of water use efficiency.
Which of the following practice does NOT contribute to in-situ moisture conservation?
Organic mulches are useful to
Which one of the following is not a surface horizon (epipedon)?
Shale on metamorphosis changes to
Stoke's Law suggests that velocity of fall of particles is directly proportional to the
Clay particles in soil have the diameter of
Redox potential is a measure of which one of the following?
The most abundant element in the earth's crust is
Match List I with List II
Choose the correct answer from the options given below:
The unconsolidated material above the parent material is called
DDT has stable and high persistence in
Eutrophication of a water body:
If the soil temperature at 5 cm depth is \(20^{\circ}\mathrm{C}\) then what will be its value in degree Fahrenheit?
The predominant mechanism of gaseous exchange in soil is