Observe the figure A and B given below a | Class 12 Biology Chapter Environmental Issues, Environmental Issues NCERT Solutions

Question:

Observe the figure A and B given below and answer the following questions

environment

i. The power generation by the above two methods is non-polluting True/False.
ii. List any two applications of solar energy
iii. What is a photovoltaic cell?

Answer:

i. True (figure A is solar plate which generates solar energy and the second one- figure B is wind mill which generates wind energy and they both are non- polluting).

ii. 1. it generates electrical energy.

2. Solar cookers are used to prepare food with the help of solar cooker.

iii. Photovoltaic cells are made up of semiconductor material. They trap the photons from the sunlight and convert them into the flow of electrons and this will produce an electric current. One solar panel consists of many photovoltaic cells which adds up to give a large amount of electric current for various purposes. 


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Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 11: Observe the figure A and B given below and answer the following questions i. The power genera....