Science

Distillation is a water purification method that utilizes heat to collect pure water in the form of vapor. This method is effective by the scientific fact that water has a lower boiling point than other contaminants and disease-causing elements found in water. Water is subjected to a heat source until it attains its boiling point. … Read more DMPQ- Explain the method of Distillation for water purification.

Steps of photosynthesis  Carbon dioxide in the atmosphere enters the plant leaf through stomata, i.e., minute epidermal pores in the leaves and stem of plants which facilitate the transfer of various gases and water vapor.  Water enters the leaves, primarily through the roots. These roots are especially designed to draw the ground water … Read more DMPQ- What are the different Steps of photosynthesis?

  Metallic Non Metallic Metallic mineralscontain metal in raw form. Nonmetallic donot contain metals. These metals aregenerally associated withigenous rocks. These metals aregenerallyassociated with sedimentary rocks. They are usually hard and have shine of their own. They are notusually hard and have no shine oftheir own. Examples: iron,copper, bauxite, lead and tin. Examples: salt,coal, mica,gypsum, … Read more DMPQ:Outline the difference between metallic and non metallic minerals?

Hydroponics is a subset of hydroculture, the method of growing plants without soil, using mineral nutrient solutions in a water solvent.With hydroponics the plants are grown in an inert growing medium and a perfectly balanced, pH adjusted nutrient solution is delivered to the roots in a highly soluble form. Advantages of hydroponics: No soil is … Read more DMPQ: What is hydroponics? What are its advantages? (Science)What is hydroponics? What are its advantages? (Science)

  (a)Male and Female reproductive organ:    The male reproductive organs include a pair of testes (singular, testis), two sperm ducts and a penis. The testes produce the male gametes called sperms. The female reproductive organs are a pair of ovaries, oviducts (fallopian tubes) and the uterus. Ovary produces female gametes called ova (eggs).   (b)Asexual production:  It is a … Read more Give an account of following: a) Male and female reproductive organs b) Asexual production c) Binary fission d) Fertilisation

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.

  QUICK REVISION SERIES   ALLOTROPES OF CARBON: Concept of Allotropes:       An element, in different forms, having different physical properties but similar chemical properties is known as allotropes of that element. Carbon has three well known allotropes which are graphite, diamond and buck minster fullerene. These are formed by carbon atoms. Allotrope Type Properties Graphite Each … Read more Quick Revision-Allotropes of carbon

Saras Mk2 It is a light transport aircraft which is indigenously developed by National Aerospace Laboratory (NAL) The 19-seater aircraft, developed with a target cost of ₹50 crore, is at least 20-25% lower in cost than other aircraft in the similar category. pitching or the government’s UDAN (Ude Desh Ka Aam Nagrik), since it has … Read more DMPQ- Saras Mk2

The term RNA interference (RNAi) was coined to describe a cellular mechanism that uses the gene’s own DNA sequence of the gene to turn it off, a process that researchers call silencing. In a wide variety of organisms, including animals, plants, and fungi, RNAi is triggered by double-stranded RNA (dsRNA). During RNAi, long dsRNA is … Read more DMPQ- Recently RNA interference was in the news, what do you understand by the term RNAi and write down its application?

Allotrope: An element, in different forms, having different physical properties but similar chemical properties is known as allotropes of that element. Carbon has three well known allotropes which are graphite, diamond and buck minster fullerene. These are formed by carbon atoms. Following are the allotropes of carbon: Graphite:  Each carbon atom is bonded to three other carbon atoms … Read more DMPQ: What are allotropes? Discuss the allotropes of carbon with their features.