Question

Fill  in  the  blanks  with  suitable  words.

1. The  principle  involved  in  the  conversion  of  solar  energy  into
electrical  energy  is  called_.

2. The  conversion  of  crude  oil  from  plant  seeds  into  a  useful  fuel
involves  a  process  called_.

3. Wind  energy  is  a  converted  form  of_.

4. The  energy  trapped  within  10  km.  of  Earth’s  crust  is  known
as_.

DSERT Class 10 Science Ch 1 Alternate Sources of Energy

Answer 1

1. The principle involved in the conversion of solar energy into
electrical energy is called 'Photovoltaic prinicple'.


2. The conversion of crude oil from plant seeds into a useful fuel
involves a process called 'Transesterification'.


3. Wind energy is a converted form of 'Solar energy'.


4. The energy trapped within 10 km. of Earth’s crust is known
as 'Geothermal energy'.

Answer 2

1. Photovoltaic effect - Conversion of solar energy to electrical energy

2. Transesterification reaction - conversion of crude oil from plant seeds into a useful fuel

3. Solar energy.

4. Geo-thermal power/energy: Energy trapped within 10 kms from crust of earth