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Question
You have been gifted a new cell phone which is powered by solar energy. Write an email to your friend describing the phone and all its exciting features. You may use the notes that you have made in A.7.
Solution
Date : May 11, 20 - -
From : [email protected]
To : [email protected]
Subject : New Cell phone : Solar 777
Dear Mehak
I hope my letter will find you all, in the best of health and spirits . I was mightily thrilled to receive two books 'The Tinkler's Question' and 'The Immortals of Meluha' that you sent lately.
I apprise you of the most wonderful gift that has made a difference to me. I am sure it will also change the mindsets of the entire country, once it becomes popular . The new cell phone 'SOLAR' 777 is powered by solar energy . Realising the side- effects of mobile-phones. many manufacturers are going green while others are going solar . Three cheers for Samsung that has introduced the solar-powered phone. It is a touch phone that has full solar panel on its back . This panel can generate enough power to charge the phone. It has a built-in pedometer to keep a tab on the carbon dioxide emissions. And ... more important, it fits into your pocket and your budget constraints. It provides fifteen minutes of talktime for every hour of sunlight . Isn't it a wonderful invention?
I shall gift you Coral 200, a solar-powered handset from Chinese mobile manufacturer ZTE on your birthday
Bye 1 Stay in touch.
Your friend
Renu
APPEARS IN
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You are going to listen to a presenter discussing three new inventions-The Solerickshaw . As you listen complete the note given below :
Solar powered inventions :
I. Solerickshaws
1. Features
You are going to listen to a presenter discussing three new inventions- The Solar Water Purifier. As you listen complete the notes given below :
Ill. Solar water purifier
1. First type features
(i) ..........................
(ii) .......................
2. Second type features
(i)........................................
(ii) ....................................
(iii) process of distillation
(a) water heated by .......................
(b) water condenses on .....................................
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(d) water collected in .................
(e) from trough into.......................
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You have listened to a presentation on three new inventions. One of them is solar water purifier. The stages of water purifier can be set in a flow-chart. Copy and complete the following flow chart with the stages in their correct order.
1 . impurities of water remain in the box
2 .sun rays heat the water
3 . box filled with unpurified water
4 . solar panel is placed on top of a rectangular shaped box
5 . water condenses on the underside of the solar power
6 . slope of the panel allows water to be collected in the trough
7 . bottles collect water from trough
