This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
two students A and B were given 10ml of water in a bowl and a plate respectively. They were told to observe the rate of evaporation.Name the student whose water evaporate faster explain |
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Answer» Student B's water will evaporate FASTER than that of A because plate has more SURFACE area which will INCREASE the RATE of evaporation |
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| 2. |
What are the symbols used for the shells which accommodate the electrons in various atoms? |
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Answer» HI mate☺☺☺ ELECRON shell Each shell can contain only a FIXED number of ELECTRONS: The first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to18 (2 + 6 + 10) and so on. The general formula is that the NTH shell can in principle hold up to 2(n2) electrons. |
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| 3. |
Rahul and manav each were given a mixture of iron filings and sulphur powder .rahul heated the mixtre strongly and a new substance was formed .write three points of difference the two |
| Answer» RAHUL has iron sulphide w with CHANGED PROPERTIES of iorn and sulphide. iron sulphur mixture can seperated by using the magnet but iron sulphide cannot be separated.iron sulphide is a COMPOUND whereas iron sulphur is a mixture | |
| 4. |
How do animal help in seed dispersal? in short? |
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Answer» 1. like birds carry seeds in their MOUTH and DROP it SOMEWHERE else so the plant grow there |
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| 5. |
Why the veins are provided with valves? Why the arteries have thick wall? |
| Answer» VEINS have valves so that the deoxygenated blood does not travel BACK...and wolud straight go to the heart for purification. Arteries have thick walls so that they can bear the HIGH PRESSURE of blood from the heart. | |
| 7. |
When do we say that two liquids are immiscible? explain talking a suitable example |
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Answer» We says that TWO liquid is immiscible when they can't be mixed or dissolved |
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| 8. |
Name the structual and functional unit of kidney |
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Answer» Here is your ANSWER.. |
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| 9. |
If a doctor prescribes Tylenol III with codeine, he or she has prescribed a __________. A. stimulant B. depressant C. narcotic D. hallucinogen |
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Answer» If a DOCTOR PRESCRIBES Tylenol III with codeine, he or she has prescribed a - C. Narcotic. It is a narcotic similar to Morphine. It is used to curb the pain of PATIENTS. Apart from that it is also used to treat cough and cold. It increases the patient’s tolerance to pain and THUS the discomfort diminishes. |
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| 10. |
Which of the following is an example of a non-renewable resource? |
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Answer» Here is your answer...dear...✨✨✨ |
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| 11. |
To protect tooth decay we are advised to brush our teeth regularly. The nature of the tooth paste commonly used is,Choose the correct answer:(i) Acidic (ii) Neutral (iii) Basic (iv) Baking soda |
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Answer» The answer must be basic as bacteria in our mouth PRODUCE acid on the teeth DUE to production of SUGAR which we get from food and they are acidic so our saliva cannot reach it so we are recommended to brush daily . if it helped you mark it as BRAINLIEST .. |
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| 12. |
What is alimentary canal |
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Answer» The whole PASSAGE along which food passes through the BODY from mouth to anus during DIGESTION. |
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| 13. |
Which type of reflector is used in a car headlights for producing a parallel beam of light |
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| 14. |
How are shadows formed? |
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Answer» BASICALLY an OBJECT that does not allow any light to PASS through will form shadow. SHADOWS are formed by light because if light shines on to an object and the object BLOCKS the light, the light will go sideways of the object and therefore a shadow is formed. Hope it helps. |
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| 15. |
Collect soil from your school ground try to make a ring with that soil write down your observations for type of soil it is |
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Answer» It cannot be form ring because the GROUND containing SAND SOIP or when soil is clay ring can be formed .once refer to the text book 7TH class about soil |
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| 16. |
Define imperfection solid |
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Answer» Imperfections in Solids. ... The electrons and holes in solids gives RISE to electronic imperfections. (2) Atomic imperfections/point DEFECTS: When deviations exist from the REGULAR or periodic ARRANGEMENT around an ATOM or a group of atoms in a crystalline substance, the defects are called point defects. |
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| 17. |
How is water a precious liquid on the earth? |
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Answer» Water is a very precious liquid. All beings need water for survival. However, 97 PER cent of the total water on earth is salt water because they are found in the oceans. Of the rest 3 per cent, 2 per cent is trapped in ice caps and ICEBERGS and only 1 per cent is available to us in the form of fresh water for use. Therefore, with scanty water available for use, ONE can say that water is a very precious liquid of Planet Earth. |
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| 18. |
To prevent the degradation due to sunlight, some materials are stored in which type of bottles? |
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Answer» Degradation of MATERIALS due to sunlight is CALLED photodegradation. To avoid photodegradation materials should be packed in amber colored BOTTLES or boxes. Amber is a color close to dark brown, and this works very well in blocking low frequency light WAVES among which the harmful UV rays of the sun are one. |
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| 19. |
What is buoyant force |
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Answer» Here is your answer |
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| 20. |
Explain the way in which glucose is broken down in absence of oxygen |
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| 21. |
India has rich in flora and fauna |
| Answer» YAA its true 18% of world's TOTAL geographical LAND flora and FAUNA | |
| 22. |
Suman wants to store curd in a container. She has two containers one made up of glass and other made up of metal. Which container should she use? |
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Answer» She should USE glass container. Because it is less reactive and container made of metal can REACT with CURD. Curd is acidic that can react. |
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| 23. |
What are the adverse effects of corrosion? |
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Answer» CORROSION REFERS to rusting. The term corrosion is considered as the gradual degradation of METALS by means of chemical reaction with the surroundings. In other words, corrosion is known to be the disintegration of ENGINEERING material into the constituent atoms owing to the chemical reaction within the environment. Corrosion can be either considered with regards to electro-chemical or chemical PROCESSES. |
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| 24. |
What is meant by the statement that the rating of a fuse in a circuit is 5 Ampere ? |
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Answer» It means that the circuit can ABLE to HOLD the current up to 5 AMPERE. |
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| 25. |
the kidney in human beings are a part of the system for : 1. nutrition 2. respiration 3. excretion 4. transportation |
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Answer» HEY FRIEND here's your answer 3.Excretion |
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| 26. |
Difference between biodegradable and non biodegradable material? |
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Answer» The WASTE which can be decompose easily by microbes is called BIODEGRADABLE waste and the waste which cannot be DEGRADED by microbes or MICRO organism is called non biodegradable waste |
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| 27. |
Why is transpiration is important for plants |
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Answer» The water, warmed by the SUN, turns into vapor (evaporates), and passes out through thousands of tiny PORES (stomata) mostly on the underside of the leaf surface. This is transpiration. It has two MAIN functions: cooling theplant and PUMPING water and minerals to the leaves for photosynthesis. |
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| 28. |
Write a short note on DNA |
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Answer» DNA, or deoxyribonucleic acid, is the hereditary material in HUMANS and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is CALLED nuclear DNA), but a small amount of DNA can ALSO be found in the mitochondria (where it is called mitochondrial DNA or mtDNA). Mitochondria are STRUCTURES within cells that convert the energy from food into a FORM that cells can use. |
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| 29. |
Why are the plastic tanks used for storage of chemicals? |
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Answer» Hey!!! |
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| 30. |
How is the ester defined? |
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Answer» An organic COMPOUND MADE by replacing hydrogen of an ACID by alkali. |
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| 31. |
How are chargeable cell different from ordinary dry cells |
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Answer» Chargeable CELL is different from ordinary cell and chargeable cell can be CHARGED But Ordinary cell cannot be charged chargeable cell have anode and cathode both the rods but the ordinary cell have only one ROD |
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| 32. |
Obtained from fine hair of Kashmiri goat |
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Answer» Your ANSWER is the KIND of wool called pashmina... it is extermely soft and comfortable it is used to make sweaters SHAWLS etc. |
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| 33. |
The table shows information about four objects resting at the top of a hill. Which object is on the tallest hill? W X Y Z |
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Answer» Where is the table ? |
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| 34. |
a train travelling at a speed of 90 km per hour brakes are applied so as to produce a uniform acceleration of -4.5 M per second find how far the train will go before it is brought to rest |
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Answer» Heya..! |
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| 35. |
Which part of the brain gives rise to spinal cord |
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Answer» The CEREBELLUM GIVE RISE to SPINAL CORD |
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| 36. |
Name a metal carbonate which is soluble in water. |
| Answer» CACO3...................... | |
| 37. |
The non-metal ....................... is used in gun powder. |
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Answer» HEYAA FOLK, |
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| 38. |
Explain relation between greenhouse effect and global warming. |
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Answer» There is a closer relationship existing between the PHENOMENON of green house effect as WELL as the resultant global warming. The effect of greenhouse gas traps out the incoming sun radiations. With daily depletion of the ozone LAYER, the high volume of UV radiations seems to enter into the atmosphere. Greenhouse gases namely considered as NITROUS oxide, methane, carbon dioxide and some other gas are responsible for this OCCURRENCE. |
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| 39. |
Pb3O4 +HCl3 - pb(NO3)2+pbO2+H2Obalance it. |
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Answer» 2PB3O4+2HCl-pb(NO3)2+pbo2+H2O |
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| 40. |
How is food transported in plants |
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Answer» Hey |
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| 41. |
Explain how animals are adapted to overcome the competition of food and shelter in rainforest |
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Answer» Animals in TROPICAL rainforests are adapted in such way that they eat different kinds of FOOD to overcome the competition for food and shelter. Some of ... So, the elephant is ABLE to HANDLE the competition for food rather WELL. |
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| 42. |
What are the different receptors present in our body what are their function |
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Answer»
Receptors are present in our all parts of the body. They DETECT the SIGNALS and SEND to the brain in the form of electrical signals. its functions are: (1) photo receptors: its function is to see. ts is present in the EYES. (2) pheno receptors: its function is to hear and balance the body. it is found in the ear. (3) olfactory receptors: its function is smell detection. (4) thermo receptors: its function is to feel heat, cold or touch. (5) gustory receptors: its function is to detect taste. |
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| 44. |
Why is recycling or reusing plastic not an environment friendly method of conservation |
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Answer» The RECYCLING or reusing PLASTIC not an environment-friendly method of conservation because: • High upfront capital COSTS are not at all ideal for the recycling process. • The sites are not hygienic or in HEALTHY condition for employees to work in. • The waste is not DURABLE in nature in terms of quality. |
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| 45. |
Explain why some of the leaves may get detached from a tree if we vigorously shake it's branch |
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Answer» As we know that LEAVES are in REST. when we shake the BRANCH it comes in motion, but the leaves are in rest so by FIRST law of motion the leaves fell from the branch |
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| 46. |
Why does ice box have double wall? |
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Answer» An ice box is made of DOUBLE wall and the space between the walls is FILLED with some non - conducting MATERIAL to provide heat insulation , so that the loss of the heat can be MINIMIZED |
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| 47. |
What are various types of plastics give two example of each type of plastics |
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Answer» TWO TYPES of plastics 1: THERMOPLASTIC .Eg: nylon, polythene... 2: thermosets: acrylics, expxies.... HOPE IT'S HELP YOU.... |
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| 48. |
Explain the differences between coconut and mango tree as per the classification criteria |
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Answer» I hope it helps u dear. |
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| 49. |
What is the significance of blood pressure ???#Asap |
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Answer» Hey MATE!! |
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| 50. |
Q.(a). The modern periodic table has been evolved through the early attempts of Dobereiner, Newland and Mendeleev. List one advantage and one limitation of all the three attempts.Q.(b). Name the scientist who first of all showed that atomic number of an element is a more fundamental property than its atomic mass.Q.(c). State Modern periodic law. |
| Answer» Q. C. ANSWER I HOPE it will HELP you | |