Applied Biology
Learn the key concepts of Applied Biology for A/L Biology, explained simply · Aligned with the NIE syllabus
Where this fits in the syllabus
Grade 2 · Term 6
What you'll learn
Learn the key concepts of Applied Biology for A/L Biology, explained simply
About A/L Biology: A/L Biology covers the study of life from molecular to ecosystem level.
A. Water Contamination and Public Health
Definition: Water contamination refers to the presence of harmful microorganisms, chemicals, or other substances in water that make it unsafe for human consumption or use, posing significant public health risks. Explanation: Water contamination occurs when pathogens enter water sources through various routes, making water unsafe for drinking. This contamination can happen through fecal matter from humans and animals, industrial waste, agricultural runoff, or improper waste disposal. Contaminated water serves as a medium for transmitting waterborne diseases like cholera, typhoid, and dysentery. The presence of harmful microorganisms in drinking water can lead to widespread illness outbreaks, especially in communities without proper water treatment facilities. Understanding contamination routes is crucial for preventing waterborne diseases and ensuring public health safety.
Source: Idasara knowledge pack — english/AL_SCIENCE/biology v8, short_notes: Lesson 43 - Utilizes the microbiological concepts and principles to maintain the quality of water and for solid waste management - Microbiological concepts and principles in potable water supply and waste water management
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