Question

collect waste material from your homes.This could include all the waste generated during a day ,like kitchen waste ,waste paper,empty medicines,bottles/strips/bubble amd broken footwear.
Bury this material in a pit in the school garden or if there is no space available you can collect the material in an old bucket and cover with at least 15 cm of soil.
keep this material moist and observe at 15 day intervals.
what are the materials that remain unchanged over long periods of time.
what are the materials which change their form and structure over time?
of these materials that are changed ,which ones change the fastest?

Answer 1

Answer:

Explanation:

Remain unchanged: Waste paper, bottles/strips/bubble and broken footwear.

Changed: Kitchen wastes

Fastest: Kitchen wastes.

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