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The educational sector faced its own set of challenges during the pandemic. Schools and universities transitioned to remote learning, which exposed a digital divide among students. Those with limited access to technology struggled to keep up with their studies, impacting their academic performance and future prospects. Additionally, the lack of in-person interaction took a toll on students' mental health, leading to increased feelings of isolation and anxiety.
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Another significant additive is corrosion inhibitors. Corrosion is a common problem in chilled water systems due to the presence of metals like copper and steel. Over time, these metals can corrode, leading to leaks and lower system efficiency. Chemicals such as sodium nitrite, sodium molybdate, and organic inhibitors like azoles are often used to provide a protective layer on metal surfaces, reducing the rate of oxidation and extending the lifespan of the equipment.
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In agriculture, polyacrylamide is used primarily as a soil conditioner. When mixed into the soil, PAM improves water retention and soil structure, which is particularly beneficial in arid regions. This enhances crop yield by ensuring that plants have sufficient access to water and nutrients. Moreover, PAM helps reduce soil erosion by stabilizing the soil and minimizing runoff. As farmers worldwide seek sustainable practices to enhance productivity and mitigate environmental impacts, polyacrylamide has emerged as a valuable tool in modern agricultural techniques.
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