Answer the following
A Student collects following items that she uses daily in the school. These items include books, stapler pins, steel Spoon, wooden scale and metal compass.
Which items are biodegradable?

Answer the following A Student collects following items that she uses daily in the school. These items include books, stapler pins, steel Spoon, wooden scale and metal compass. Which items can be recycled?

Answer the following A Student collects following items that she uses daily in the school. These items include books, stapler pins, steel Spoon, wooden scale and metal compass. Suggest two methods that she can follow in order to help in waste management.

Name the following: Food items in which vinegar is used as preservative.