Green Skills-II Case Study Based Questions 03 Term II

Information Technology TERM II

Green Skills-II

Class 10 Session 2021-2022

Case Study Questions 03

Direction Read the case and answer the following questions.

On a daily basis, more than 15 crore people face darkness or at best, the dim glow of candle-lights or kerosene lamps, whose smoke is poisonous. Scientists, social workers and NGOs have come together to empower rural women and youth to make simple solar lights. A project called ‘Liter of Light’ is bringing light to places that need it most, by recycling plastic bottles to make lamps. Plastic bottles are filled with water and bleach (to prevent growth of algae). The bottles are then installed onto roofs of houses and begin working as a mirror on the roof, becoming a natural light bulb during the day. However, these bulbs can work only during the day.

(i) A project called …………….. is bringing light to places that need it most, by recycling plastic bottles to make lamps.

(a) plastic bottles light
(b) liter of light
(c) bringing light
(d) None of these

(b) liter of light

(ii) Natural light bulb can work only during the

(a) day
(b) night
(c) afternoon
(d) Both (i) and (ii)

(a) day

(iii) Plastic bottles are filled with water and bleach to prevent

(a) protozoa
(b) bacteria
(c) virus
(d) algae

(d) algae

(iv) The bottles are installed onto roofs of houses and begin working as a …………….. on the roof, becoming a natural light bulb during the day.

(a) reflector
(b) mirror
(c) glass
(d) protector

(b) mirror

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