B.Ed Practicum (Sem-4) English Version, EVS~Visit To Polluted Sites And Preparation Of A Report,

Anko Chorcha / অঙ্ক চর্চা

22 Aug 202203:32

Summary

TLDRThis script outlines a report on the observation and analysis of a local water body, highlighting the scarcity of fresh water on Earth. It emphasizes the importance of addressing water pollution, detailing the methodology for data collection and analysis. The report includes observations of water quality parameters, nearby environmental factors, and their impact on the ecosystem. It concludes with a call for action to protect this vital resource.

Takeaways

📍 The importance of selecting a local water body as a site for pollution study due to its visibility and impact on the community.
💧 Freshwater is a limited resource, with only 2% of the Earth's water being accessible as groundwater, highlighting the scarcity of this vital resource.
❄️ The majority of the Earth's water is in the form of icebergs and frozen water in polar regions, which is not readily usable.
🔍 The objective of the study involves psychological observation, data collection, and regular monitoring of the water body by a named observer.
📊 Data is organized into tables focusing on economic specimens, plants, animals, pollutants, and soil conditions.
🌡️ Observations include the nature of the water, its temperature, color, pH levels, and the presence of various organisms and chemicals.
🏞️ The study also considers the regional pollution, habitat, agricultural fields, topography, soil, average rainfall, and temperature.
🏭 The influence of industries on the water body is noted as a significant factor in the study of water pollution.
📈 Data analysis involves the use of data tables and visualizations to understand the extent and nature of pollution.
📝 The report includes a reference section for further reading and an acknowledgment section to recognize contributions to the study.

Q & A

What is the significance of selecting a local water body as a site for pollution observation?
-Local water bodies or tanks are often chosen as they are easily accessible public places that can serve as clear examples of local pollution.
What is the percentage of fresh water available on Earth, and where does it primarily exist?
-Only 2% of the Earth's water is fresh, with most of it being groundwater. The remaining 1.5% exists as icebergs and frozen water in polar regions.
Why is it important to study the problem of water pollution?
-Water is a limited resource, and studying water pollution helps in understanding its impact on this precious resource and aids in developing strategies for conservation and protection.
What are the objectives of the observation at nearby places mentioned in the script?
-The objectives include data collection, identifying the name of the water body, the name of the organization responsible for regular filtration, and fulfilling the role of an observer.
What are the key parameters to be studied when observing the nature of water in a water body?
-Key parameters include temperature, color, pH level, presence of organisms, floating and submerged plants, and biological oxygen demand.
What kind of information is gathered in Table 3 of the observation at nearby places?
-Table 3 focuses on regional pollution, habitat, agricultural fields, topography, soil, average rainfall, average temperature, and industries.
How is the data collected during the observation analyzed?
-The data is analyzed using data tableau, which helps in visualizing and understanding the patterns and trends in the collected data.
What is the purpose of the reference section in the report?
-The reference section provides credibility to the report by citing sources of information and data used during the study.
What is the role of an observer in the water body observation process?
-The observer is responsible for collecting data, noting observations, and ensuring the accuracy and reliability of the information gathered.
How can the information from the script be used to raise awareness about water pollution?
-The detailed observations and data analysis can be used to create educational materials or presentations that raise public awareness about the issue of water pollution.

Outlines

00:00

🌍 Environmental Observation and Water Pollution Report

The paragraph discusses the process of preparing a report on local water pollution. It emphasizes selecting a public place or water body that is visibly polluted. The importance of water as a limited resource is highlighted, noting that only 2% of the Earth's water is fresh and accessible as groundwater, with the rest being mostly in the form of icebergs and frozen in polar regions. The objective includes psychological observation, data collection, and regular monitoring of the water body. The report is structured with tables for data on economic specimens, pollutants, and observations on the nature of water, including temperature, color, pH, and the presence of organisms and chemicals. It also covers the analysis of data and references used in the report.

Mindmap

Keywords

💡Public place

A public place refers to an area or location that is open and accessible to people in general. In the context of the video, it is highlighted as a potential site for observing local pollution, particularly of water bodies. The script mentions selecting a public place for identifying a polluted site, which underscores the importance of public spaces in environmental studies and the need for community awareness about local environmental health.

💡Local water body

A local water body is a natural or artificial body of water within a specific geographic area. The video emphasizes the significance of local water bodies as they are often the first indicators of environmental health. The script suggests that observing and reporting on these bodies can help identify pollution and take necessary actions to preserve water quality.

💡Pollution

Pollution refers to the contamination or presence of harmful substances in the environment, which can have adverse effects on living organisms and ecosystems. The video script discusses pollution as a central problem, highlighting the need for observation and data collection to understand and mitigate its impact on local water bodies.

💡Freshwater

Freshwater is water with low concentrations of salts and other minerals, making it suitable for drinking and supporting aquatic life. The script points out that only 2% of the Earth's water is freshwater, emphasizing its scarcity and the importance of conserving it. This keyword is crucial as it relates to the video's theme of water body pollution and the limited nature of this vital resource.

💡Groundwater

Groundwater is water that is stored underground in the spaces between soil particles and rocks. The video mentions groundwater as part of the freshwater resources, which are crucial for human consumption and the environment. Understanding groundwater's role is essential for the video's narrative on water body pollution, as it can be affected by surface pollutants that seep into the ground.

💡Iceberg

An iceberg is a large mass of freshwater ice that has broken off from a glacier or an ice shelf and is floating in open water. The script mentions icebergs as part of the Earth's water resources, highlighting that a significant portion of the world's freshwater is locked up in ice, making it unavailable for immediate use and emphasizing the importance of protecting accessible freshwater sources.

💡Observation

Observation in the context of the video refers to the act of watching and recording data about local water bodies to identify pollution and other environmental issues. The script outlines a methodical approach to observation, including the collection of data on water quality and the presence of pollutants, which is essential for understanding and addressing environmental problems.

💡Data collection

Data collection is the process of gathering information and measuring certain variables for analysis. The video script describes a systematic approach to data collection, including the use of worksheets to record observations on water properties and pollutants. This keyword is central to the video's message about the importance of empirical research in environmental science.

💡Pollutants

Pollutants are substances that contaminate the environment, causing harm to living organisms and ecosystems. The video script discusses various types of pollutants, such as chemicals and soil, that can affect water bodies. Understanding the nature of pollutants is key to the video's theme of environmental protection and the steps needed to monitor and mitigate their impact.

💡Biological oxygen demand (BOD)

Biological oxygen demand (BOD) is a measure of the amount of oxygen required by microorganisms to break down organic matter in water. The script mentions BOD as one of the parameters for assessing water quality, indicating the presence of organic pollutants and the health of the aquatic ecosystem. This keyword is relevant to the video's focus on monitoring water bodies for signs of pollution and ecological stress.

💡Industry

Industry refers to the sector of the economy that is involved in the production of goods, often associated with manufacturing and processing. The video script includes industry as one of the factors that can contribute to water pollution. This keyword is important as it relates to the video's broader discussion on the sources of pollution and the need for sustainable industrial practices.

Highlights

Introduction to the importance of selecting a local water body or tank as a study site for pollution.

The problem of water scarcity, with only 2% of Earth's water being fresh and accessible.

1.5% of Earth's water is in the form of icebergs and frozen in polar regions.

The significance of addressing the limited freshwater resources.

Objectives of the study include observation, data collection, and regular filtration.

Details on the data collection process, including the name of the water body and observer.

Worksheet one focuses on economic specimens, plants, animals, pollutants, and soil.

Worksheet two covers the study of water properties such as temperature, color, and pH.

Observation of organisms present in the water, including floating and submerged plants.

Assessment of biological oxygen demand and presence of chemicals in the water.

Worksheet three involves observation of regional pollution, habitat, agricultural fields, and topography.

Analysis of data collected, including rainfall and temperature averages.

Identification of industries as potential sources of pollution.

Methodology for data analysis and presentation using data tableau.

Reference to the importance of acknowledging the sources of information.

Practicum about the spread of information through video, relevant to the topic.