BNRI 103 Solved Assignment 2024-25
BNRI 103 Solved
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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.
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
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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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WhatsApp – 8130208920
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