Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • Why is there a need for harnessing non-conventional sources of energy? How can energy be harnessed from the sea in different ways?

Why is there a need for harnessing non-conventional sources of energy? How can energy be harnessed from the sea in different ways?

Answers (1)

Answer:

Non-conventional sources of energy are renewable sources of energy. Examples:

1. Solar Energy

2. Tidal Energy

3. Geothermal energy

4. Nuclear energy

Reasons for harnessing non-conventional sources energy:

1. Demand for energy is increasing day by day. Increasing human activities and increasing demand of electricity has to be met. Changing life-styles, rapid industrialisation and population explosion demands increase in human needs.

2. All the predominant forms of energy we use are fossil fuel based and are responsible for pollution and global warming. Moreover, these are non-renewable resources. 

Different forms from which energy can be harnessed from sea:

1. Tidal energy: Harnessing energy from the mechanical energy of the tides in sea. This method is not used predominantly but the tides are regular all the time so has a potential to be an alternative for fossil fuels.

2. Ocean Thermal energy: Ocean thermal energy conversion is a process for producing energy by harnessing the temperature differences between ocean surface waters and deep ocean waters.

Temperature difference at different levels in the ocean is due to the availability of sunlight. As the sunlight is prevalent on the surface which increases the temperature of water but inner layers won’t get the same amount of heat which in turn creates a temperature difference.

Posted by

infoexpert23

View full answer

Similar Questions

Latest Question