How can we use biomass as?

How can we use a diode as a switch

Oral Work : How can we see objects at night using infrared camera?

How are we using carbon as a fuel?

Discuss the potentials of biodegradable organic municipal waste or weeds like water hyacinth. How can we use them?

What is biomass ? What can be done to obtain bio-energy using biomass ?

What is biomass ? What can be done to obtain bio-energy using biomass ?