DMPQ- Mention the various applications of Polystyrene.

Polystyrene in Appliances Refrigerators, air conditioners, ovens, microwaves, vacuum cleaners, blenders – these and other appliances often are made with polystyrene (solid and foam) because it is inert (doesn’t react with other materials), cost-effective and long-lasting.     Polystyrene in Automotive Polystyrene (solid and foam) is used to make many car parts, including knobs, instrument … Read more DMPQ- Mention the various applications of Polystyrene.

DMPQ- What are directional and non-directional movements in plants?

Directional Movements Directional changes are called tropic movements. Tropic movements are the one which occurs in the direction of the stimulus. Positive phototropism is responding by bending towards the sunlight which can be seen in shoots. Negative geotropism is growing away from the ground which is also shown by shoots. Roots exhibit negative photo tropism … Read more DMPQ- What are directional and non-directional movements in plants?

DMPQ- What is composting?

Composting is an anaerobic microbially driven process that converts organic wastes into stable sanitary humus like material. This material can then be safely returned to the natural environment. This method is actually a low moisture, solid substrate fermentation process. In large- scale operations using largely domestic solid wastes, the final product is mostly used for … Read more DMPQ- What is composting?

DMPQ- Write a short note on Community Information Centre.

Department of Electronics and Information Technology (DEIT) had taken up an initiative in February 2002 for setting up of Community Information Centres (CICs) in the hilly, far-flung rural areas of the country to bring the benefits of ICT (Information and Communication Technologies) to the people for socio-economic development of these regions and to alleviate the … Read more DMPQ- Write a short note on Community Information Centre.

DMPQ:Explain the following term: a) Pyramid of Number b) Pyramid of Biomass c) Pyramid of Energy

a) Pyramid of Number: This represents the number of organisms at each trophic level. For example, in grassland the number of grasses is more than the number of herbivores that feed on them and the number of herbivores is more than the number of carnivores. In some instances, the pyramid of number may be inverted, i.e … Read more DMPQ:Explain the following term: a) Pyramid of Number b) Pyramid of Biomass c) Pyramid of Energy

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