Recyclers check materials for type (paper, glass, metal, plastic), cleanliness, and separability. They avoid buying contaminated or mixed materials, as these complicate recycling processes and reduce the value of the recyclable materials.
Category: Class 6 Science
NCERT Solutions and Important Questions for class 6 Science for CBSE exams 2020-2021.
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Materials that can be recycled include paper, glass, plastic, and metals. These materials are processed to create new products, reducing waste and conserving resources. Recycling helps in environmental conservation and efficient resource management.
Soluble pairs: vinegar and glucose, water and glucose. Insoluble pairs: mustard oil and water, honey and wheat flour. Glucose dissolves in vinegar and water, while mustard oil and honey do not dissolve in the others.
Material X is likely a soluble, rigid substance like salt, while material Y is a soft, insoluble substance like clay. X dissolves in water, whereas Y remains unchanged, reflecting its different properties.
For food waste, use plastic containers for durability and ease of cleaning. For broken glass, use sturdy, puncture-resistant containers to avoid accidents. For wastepaper, use paper or cardboard bins for easy recycling.