CBSE Class 10 Science 2015 Term I Set 1

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Question : 17
Total: 36
Anita visited her village during summer vacation and saw her grandmother burning firewood to cook food. This caused lots of smoke and resulted in the bad health of Anita's grandmother. Anita suggested some alternatives to her family in the village and offered to help them. Now answer the following questions :
(i) List any two alternatives that Anita must have suggested to her grandmother.
(ii) How will Anita's grandmother benefit herself and the community by not burning the firewood? Give one reason each.
(iii) Which qualities of Anita are reflected in her way of thinking ?**
Solution:  
(i) Two alternatives suggested by Anita are:
(a) Use of biogas
(b) Use of charcoal
(ii) Disadvantages of burning firewood are:
(a) Burning of firewood causes lot of smoke which harms the person who is cooking the food and causes air pollution which is harmful for the environment and harms the society as a whole.
(b) Use of firewood causes deforestation and is not eco-friendly.
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