NCERT Solutions for Class 10 English Main Course Book Unit 3 Science Chapter 1 Promise for the Future : Renewable Energy
CBSE Class 10 English Main Course Book Unit 3 Science Chapter 1 Promise for the Future : Renewable Energy
Textual Exercises
Question 1.
In A.2 you will read about alternate sources of energy. Before doing so find out how much you already know about renewable sources of energy. Complete column A, to indicate whether you think each statement is True (√), False (x), or whether you do not know (?) After reading the passage, complete column B in the same way.
Answer:
Question 2.
Now go back to A.I. and complete column (B). How much did you know already before you read the article ?
Answer:
Question 3.
Complete the following blanks with information from the passage :
(a) India receives 5000 trillion kWh/year which means ________ .
(b) The advantages of using solar energy instead of fossil fuels is that it is ________ .
(c) It is important to find means of keeping air and noise pollution in urban areas under control because ________ .
(d) Tax exemptions and subsidies are required to ________ .
(e) The media can help by ________ .
Answer:
Question 4.
Copy and complete the following table with the required information from the passage
Answer:
Question 5.
Based on your reading of the passage say whether the following statements are True or False :
(a) EV’s have the potential to flourish in India
(b) EVs degrade with time
(c) EVs can create health hazards
(d) EVs cannot drive fast because they have only two pedals
(e) Solar power will not last for a very long time in our country
(f) Establishing Solar Power generating units is too expensive
Answer:
Question 6.
You are going to listen to a presenter discussing three new inventions-The Solerickshaw, the Green Phone and the Solar Water Purifier. As you listen complete the notes given below :
Answer:
Question 7.
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.
Answer:
Question 8.
Now read that portion of the listening text describing the solar distillation system :
Answer:
Question 9.
Below is a flow chart describing the process of making rubber. Use it to help you copy and complete the process description that follows it. Remember to use the simple present tense, a mixture of actives and passives, and to add sequence markers where you see
Answer:
Question 10.
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.
Answer:
The Complete Educational Website