Explain the role of cry-genes in genetically modified crops.

Write the key features of organic farming.

Justify the role of microbes as a bio-fertilizer

What is 'activated sludge' in sewage treatment?

UV is an ideal disinfectant for waste water. Give Reason

What is biogasr?

How does Delta-endotoxin affect insects?

Differentiate between Prebiotics and Probiotics

Name the scientists who were awarded Nobel Prize in 1945 for discovering the penicillin drug & its role as an antibiotic.

Write a short note on biodiesel