Question

why is there a need to harness non-conventional source of energy? Give two main reasons .

Answer 1

There are various reasons to do so but the main two reasons are....
1. We humans have a limited amount of non renewable resources , so we cannot completely rely on them for our survival....
2. We should follow sustainable development i.e. saving some non renewable resources for future generation.... as once exhausted they require a lot of time to replenish...as well non renewable resources produce pollution.
Hope it may help you...

Answer 2

resources are play a very important role in development of any nation. we need to harness of non conventional sources due to many reasons which are as follows:
1. our conventional sources are very few like coal petroleum ect. and these are non-renewable resources to protect our conventional sources we need the non conventional sources.
2. our conventional sources like coal petroleum ect. creat pollution to environment it is also a cause for what we have a need to harness of non-conventional sources for the sack of protect our environment from get polluted