Match the following. Ans. 1) Morphological evidences — Leaf venation2) Paleontological evidences — Fossils Ans. 1) Polluting energy — thermal energy2) Environment friendly energy — wind energy Ans. 1) sunlight — Environment friendly energy2) Natural gas — Fossil fuel Ans. 1. Aspartame — Sweetener2. Fermentation — anaerobic respiration3. Niacin — microbial restrictor4. Essence — Vanillin Ans. …
Take Quiz to Perfect Your True or False TRUE OR FALSE QUIZ Write whether true or false. 1. The decaying process of c-14 occurs continuously in dead organisms only.Ans. True 2. Prokaryotic cells divide through mitosis or meiosis.Ans. False 3. Pollen tube reaches the embryo sac via style.Ans. True 4. Sometimes twins are genetically different.Ans. …
Write the functions of : 1. GeneratorAns. Generator is a machine that generates electrical energy. 2. TurbineAns. Turbine is used to rotate the magnet in the generator. 3. CondenserAns. A condenser is used to convert steam back to water by cooling it.
Que 2 B) VII. Complete flow chart given below ( 2m each) Ans. Ans. Ans.
Que.2 B) VI. Draw a neat labelled diagram. ( 2m each.) 1) Magnetic separation methodAns. 2) Froth flotationAns. 3) Electrolysis reduction of aluminaAns. 4) Hydraulic separation methodAns. 5) Electroplating (electrolysis)Ans. 6) AnodizingAns.
Que 2 B) V. Explain concept with example / explain with the help of balanced equation. (Each 2 m) 1. Ionic bond and ionic compoundsAns.(1) The compounds formed from two units, namely cation and anion are called ionic compounds.(2) The cation and anion being oppositely charged, there is an electrostatic force of attraction between them. …
Que 2B) III.write short notes. (2m each) 1. Sodium burns in airAns. On burning, sodium metal combines with oxygen in the air to form sodium oxide. 2. Reaction of aluminium with oxygenAns. Aluminium combines with oxygen to form aluminium oxide. 3. Magnesium reacts with dil HClAns. When magnesium is treated with dilute hydrochloric acid, it …
Que 2B) IV. Explain the following reactions with the balanced equations. (2 marks each) Read More »
Que 2B) III.write short notes. (2m each) 1. Escape VelocityAns.(1) The minimum velocity with which a body should be projected from the surface of a planet or moon, so that it escapes from the gravitational influence of the planet or moon is called as escape velocity.(ii) Escape velocity is given as, , where M is mass …
Take Quiz to Perfect Your Odd Correlation CORRELATION QUIZ Question 1 B) III. Relate the following. 1) Appendix : vestigial organ : : Peripatus : Connecting Link2) Theory of evolution : Darwin : : Ancestry of acquired characters : Lamarck3) Changes in the nucleotide of gene : Mutation : : Changes in the place of …
Science Part 2 Question Bank Solution – Q.1 B) III. Relate the following. Read More »
1) l am a connecting link between reptiles and mammals. Who am I ?Ans. Duck billed platypus 2) Who is the pioneer of modern genetics ?Ans. Gregor Johann Mendel 3) Which process is shown in the following diagram ? Ans. Transcription 4) In which book Darwin had published his theory of Natural selection ?Ans. Origin …
Science Part 2 Question Bank Solution – Q.1 B) II. Name the following. Read More »
