Biodegradable Pollutant
Trending Questions
Q.
51 Read the following passage and answer the given questions.
Meenas mother uses jute bags to bring vegetables and fruits. But her friend Sheemas mother uses polythene bags to bring vegetables, fruits, grocery etc. One day, Meena asked her mother why she always prefers jute bags for grocery purposes, etc? Meenas mother is a science teacher in a Kendriya Vidyalaya. She explained nicely that jute bags are biodegradable, durable and strong. She also explained how jute is obtained and its use as a gunny bags? Meena was happy to listen this information and she explained everything to her friend Sheema also.
(c) What values are shown by Meena and her mother
Q. Based on the method of culturing, bioreactors are either batch cultures or continuous cultures. If a transgenic bacteria shows quick growth cycle, what would be the most pragmatic method to produce it on an industrial scale?
- Open Culture method
- Either of the three will give efficient results
- Single Batch culture method
- Closed Culture method
Q. For a week Manu's mom told him to bury the kitchen waste under a mango tree. After few weeks, when she told him to check that place, he was surprised. What do you think happened?
- The wastes that he threw was still there.
- The wastes that he threw last month was no longer there.
- Bacteria and worms had completely consumed them.
- The tree started to decompose.
