IGNOU MCH 23 SOLVED ASSIGNMENT

Ques 1.

Soil profile

Ques 2.

Topography

Ques 3.

Parent material

Ques 4.

Metamorphic rocks

Ques 5.

Granular disintegration

Ques 6.

How is the soil texture analysis done? Describe in brief.

Ques 7.

Describe the reasons of soil alkalinity and the consequences of the same.

Ques 8.

How is nitrogen important to the plants? Write the sources of this macronutrient to plants.

Ques 9.

What is meant by the cation exchange capacity (CEC) of soils? What is the property of soil that determines the CEC of soils? How does CEC vary with pH?

Ques 10.

Describe the distribution of the world's water resources among oceans, icecaps/glaciers, groundwater, and surface water, providing approximate percentages.

Ques 11.

Explain the importance of groundwater as a water resource in India. What are the problems in overusing ground water?

Ques 12.

Define turbidity in water and explain its causes, measurement, and significance for water quality.

Ques 13.

Briefly explain the factors affecting water quality.

Ques 14.

State the five "designated best uses" of water as per the Central Pollution Control Board (CPCB) classification and give one corresponding primary water quality criterion for each.

Ques 15.

What is meant by the atmospheric effect and the greenhouse effect?

Ques 16.

Explain how ozone layer depletion is related to global warming.

Ques 17.

How do the following factors affect the discharge of pollutants in the atmosphere?

i) Atmospheric stability

ii) Temperature

iii) Precipitation

iv) Turbulence

v) Solar radiation

Ques 18.

Stationary and Mobile sources of pollutants

Ques 19.

Indoor and Ambient air pollution

Ques 20.

Name any two methods that are used for collecting gaseous samples and explain any one of these.

Ques 21.

Dissolved Oxygen (DO)

Ques 22.

 Biochemical Oxygen Demand (BOD)

Ques 23.

 Discuss the method of aeration in the treatment of daily wastes. Also give the problems associated with it.

Ques 24.

Give the characteristics of an ideal pesticide.

Ques 25.

In which form the phosphorous occurs in sewage? Also, briefly explain the methods of removing it.

Ques 26.

How are Pathogenic bacteria transmitted in water? List any five diseases transmitted by them.

Ques 27.

Soil profile

Ques 28.

Topography

Ques 29.

Parent material

Ques 30.

Metamorphic rocks

Ques 31.

Granular disintegration

Ques 32.

How is the soil texture analysis done? Describe in brief.

Ques 33.

Describe the reasons of soil alkalinity and the consequences of the same.

Ques 34.

How is nitrogen important to the plants? Write the sources of this macronutrient to plants.

Ques 35.

What is meant by the cation exchange capacity (CEC) of soils? What is the property of soil that determines the CEC of soils? How does CEC vary with pH?

Ques 36.

Describe the distribution of the world's water resources among oceans, icecaps/glaciers, groundwater, and surface water, providing approximate percentages.

Ques 37.

Explain the importance of groundwater as a water resource in India. What are the problems in overusing ground water?

Ques 38.

Define turbidity in water and explain its causes, measurement, and significance for water quality.

Ques 39.

Briefly explain the factors affecting water quality.

Ques 40.

State the five "designated best uses" of water as per the Central Pollution Control Board (CPCB) classification and give one corresponding primary water quality criterion for each.

Ques 41.

What is meant by the atmospheric effect and the greenhouse effect?

Ques 42.

Explain how ozone layer depletion is related to global warming.

Ques 43.

How do the following factors affect the discharge of pollutants in the atmosphere?

i) Atmospheric stability

ii) Temperature

iii) Precipitation

iv) Turbulence

v) Solar radiation

Ques 44.

Stationary and Mobile sources of pollutants

Ques 45.

Indoor and Ambient air pollution

Ques 46.

Name any two methods that are used for collecting gaseous samples and explain any one of these.

Ques 47.

Dissolved Oxygen (DO)

Ques 48.

 Biochemical Oxygen Demand (BOD)

Ques 49.

 Discuss the method of aeration in the treatment of daily wastes. Also give the problems associated with it.

Ques 50.

Give the characteristics of an ideal pesticide.

Ques 51.

In which form the phosphorous occurs in sewage? Also, briefly explain the methods of removing it.

Ques 52.

How are Pathogenic bacteria transmitted in water? List any five diseases transmitted by them.

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