(1) Avoid throwing plastic and waste into drains. (2) Use eco-friendly soaps and cleaners. (3) Save water and spread awareness. Even small steps help keep rivers and ponds clean and healthy. Class 5 Our Wondrous World Chapter 2 Journey of a ...
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A “green blanket” is the thick layer of plants or algae that forms on a river’s surface due to excessive fertilizers. It blocks sunlight and oxygen, harming fish and other aquatic life. Class 5 Our Wondrous World Chapter 2 Journey of ...
The clean river with clear water looks healthy. Too many plants create a “green blanket,” reducing oxygen, harming fish and making water unsafe. This happens due to fertilizers flowing into the river. Class 5 Our Wondrous World Chapter 2 Journey of ...
Substances that dissolve in water include salt, sugar and lemon juice. Items that do not dissolve include oil, plastic, sand and rubber. Knowing this helps us understand water pollution and purification. Class 5 EVS Our Wondrous World Unit 1: Life Around ...
Sugar dissolves in water and makes the glass look clear. Oil does not mix; it floats on the surface. This shows that some substances dissolve in water, while others do not. Class 5 EVS Our Wondrous World Unit 1: Life Around ...