IGNOU BNRI 103 Solved Assignment 2024-25


BNRI 103 Solved Assignment 2024-25

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Course Code: BNRI 103

Assignment Code: BNRI 103 ASST/TMA/2024-25

Marks: 100

NOTE: All questions are compulsory

Note: Attempt all the questions and submit this assignment to the Coordinator of yourstudy centre. Last date of submission for July 2023 session is 31st October, 2023 and for January 2024 session is 30th April 2024.

Q1. Define soil erosion. Explain causes of soil erosion. Describe the different forms of water erosion.

Soil erosion refers to the process by which soil particles are dislodged and transported from one location to another by various natural forces such as water, wind, ice, or gravity. It's a natural process, but human activities often exacerbate it, leading to significant environmental problems such as loss of fertile topsoil, degradation of land, and water pollution.

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Water: Rainfall, runoff, and flowing water from rivers, streams, or waves along coastlines can dislodge soil particles and carry them away.

Wind: Strong winds can lift and carry loose soil particles, particularly in arid or semi-arid regions with little vegetation cover.

Gravity: Gravity can cause soil to move downslope, especially on steep slopes or in areas prone to landslides.

Ice: Glaciers and ice sheets can transport large volumes of soil and rock debris as they move.

Human-Induced Causes:

Deforestation: Clearing forests for agriculture, urbanization, or logging removes the protective cover of vegetation, making soil more vulnerable to erosion by water and wind.

Overgrazing: Excessive grazing by livestock can compact soil, reduce vegetation cover, and increase soil erosion.

Agriculture: Poor agricultural practices such as improper tillage, monoculture farming, and leaving fields bare after harvesting can accelerate soil erosion.

Construction: Construction activities like excavation, grading, and land clearing disturb soil and increase its susceptibility to erosion.

Mining: Mining operations can expose large areas of soil and rock, leading to erosion and sedimentation in nearby water bodies.

Water erosion, specifically, can occur in various forms:

Sheet Erosion: This occurs when thin layers of soil are gradually removed uniformly from a land surface by the flow of water over it, leaving behind a more or less level surface.

Rill Erosion: As water flow concentrates into small channels, it forms shallow grooves called rills on the soil surface. Rill erosion typically occurs on slopes and is a precursor to more severe forms of erosion.

Gully Erosion: When rills deepen and widen over time, they form larger channels known as gullies. Gully erosion can significantly degrade landscapes and lead to the loss of productive land.

Streambank Erosion: Along rivers and streams, the force of flowing water can erode the banks, causing them to collapse and contribute sediment to the watercourse.

Coastal Erosion: Along coastlines, the action of waves, tides, and currents can wear away coastal landforms, leading to the loss of beaches, cliffs, and dunes.

Each form of water erosion can have profound environmental impacts, affecting soil fertility, water quality, and the stability of ecosystems. Preventive measures such as implementing soil conservation practices, maintaining vegetative cover, and proper land management can help mitigate soil erosion and its adverse effects.

Q2. Describe Universal Soil Loss Equation (USLE) for estimation of water erosion losses along with defining its various terms.

Q3. Describe the processes of wind erosion. Explain the factors affecting wind erosion.

Q4. Describe biological and agronomic measures to control soil erosion.

Q5. Define artificial groundwater recharge. Write advantages of artificial groundwater recharge. Enlist methods of artificial groundwater recharge.

BNRI 103 Handwritten Assignment 2024-25

BNRI 103 Solved Assignment 2024-25: We provide handwritten PDF and Hardcopy to our IGNOU and other university students. There are several types of handwritten assignment we provide all Over India. We are genuinely work in this field for so many time. You can get your assignment done - 8130208920

Important Note - You may be aware that you need to submit your assignments before you can appear for the Term End Exams. Please remember to keep a copy of your completed assignment, just in case the one you submitted is lost in transit.

Submission Date :

31st March 2023 (if enrolled in the July 2024-25 Session)

30th Sept, 2023 (if enrolled in the January 2024-25 session).

IGNOU Instructions for the BNRI 103 Assignments

BNRI 103 Soil and Water Conservation Assignment 2024-25 Before ate mpting the assignment, please read the following instructions carefully.

1. Read the detailed instructions about the assignment given in the Handbook and Programme Guide.

3. Write the course title, assignment number and the name of the study centre you are attached to in the centre of the first page of your response sheet(s).

4. Use only foolscap size paper for your response and tag all the pages carefully

5. Write the relevant question number with each answer.

6. You should write in your own handwriting.

GUIDELINES FOR IGNOU Assignment BNRI 103023-24

BNRI 103 Solved Assignment 2024-25 You will find it useful to keep the following points in mind:

1. Planning: Read the questions carefully. Go through the units on which they are based. Make some points regarding each question and then rearrange these in a STATISTICS IN PSYCHOLOGYal order. And please write the answers in your own words. Do not reproduce passages from the units.

2. Organisation: Be a little more selective and analytic before drawing up a rough outline of your answer. In an essay-type question, give adequate attention to your introduction and conclusion. The introduction must offer your brief interpretation of the question and how you propose to develop it. The conclusion must summarise your response to the question. In the course of your answer, you may like to make references to other texts or critics as this will add some depth to your analysis.

3. Presentation: Once you are satisfied with your answers, you can write down the final version for submission, writing each answer neatly and underlining the points you wish to emphasize.

IGNOU Assignment Front Page

The top of the first page of your response sheet should look like this: Get IGNOU Assignment Front page through. And Attach on front page of your assignment. Students need to compulsory attach the front page in at the beginning of their handwritten assignment.

ENROLMENT NO: …………………………

NAME: ………………………………………

ADDRESS: …………………………………

COURSE TITLE: …………………………

ASSIGNMENT NO: ………………………

STUDY CENTRE: …………………………

DATE: ………………………………………

BNRI 103 Handwritten Assignment 2024-25

BNRI 103 Solved Assignment 2024-25: We provide handwritten PDF and Hardcopy to our IGNOU and other university students. There are several types of handwritten assignment we provide all Over India. We are genuinely work in this field for so many time. You can get your assignment done - 8130208920

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