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. |
What are the types of agricultural pollution? |
|
Answer» Explanation:PESTICIDE leaching. Nitrogen. PHOSPHORUS. Organic contaminants. Soil erosion and sedimentation. TILLAGE and nitrous oxide emissions. Invasive SPECIES. Biological control. |
|
| 2. |
What are the top 10 causes of pollution? |
|
Answer» tion:1. The Burning of FOSSIL FUELS. 2.Industrial Emission. 3.Indoor Air POLLUTION. 4.Wildfires. 5.Microbial Decaying Process. 6.Transportation. 7.Open Burning of Garbage Waste. 8.Construction and Demolition. 9. Agricultural activities.10. Use of chemical and SYNTHETIC products. |
|
| 3. |
Pliz calculate in detail about rounding upto four significant figures a.6.5408 b.32.3928 c.8.721×10power4 d.2000 |
| Answer» 2000 is ANSWER ok EXPLANATION:Hope you HELP my answer | |
| 4. |
Okay mein dekhti hu u tube p |
|
Answer» blBkabkahkahkbavkvkavkkavkakva |
|
| 5. |
A solid metal ‘A’ reacts with nitrogen in red hot condition to produce a greenish yellow powder ‘B’ . When ‘B’ is boiled in water a pungent smelling gas ‘C’ is formed. Identify A ,B ,C and write the necessary reactions. |
|
Answer» The metal nitrate (A) is lead nitrate (PB(NO 3 ) 2 ) on HEATING it produces lead oxide, Nitrogen dioxide (B) and oxygen GAS (C)(1) 2Pb(NO 3 ) 2 →2PbO+4NO 2 +O 2 on reaction with potassium iodide mixture of lead iodide and potassium nitrate forms(2) Pb(NO 3 ) 2 +2KI→PbO 2 +2kNO 3 ALLOY made of using lead is used in Soldering purpose.Therefore A=[Pb(NO 3 ) 2 ),B=NO 2 C=O 2 D=PbI+KNO 3 (2) Decompostion type Reaction(2) Double displacement type Reaction. |
|
| 6. |
State the principal of conservation of momentum |
| Answer» ONE of the most powerful laws in physics is the law of momentum CONSERVATION. For a collision OCCURRING between OBJECT 1 and object 2 in an isolated SYSTEM, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision. ... | |
| 7. |
WZYPVKYCTC Iwillshowmy. |
| Answer» PLEASE MARK as BRAINLEAST | |
| 8. |
A solution contains 400 gm of sugar in 40 kg of water. Calculate the concentration in terms of mass-by-mass percentage of solution a) 1% b)100/101% c) 101/100% d) 50/1000% |
|
Answer» Piyush please find the attached file is scanned IMAGE in PDF FORMAT so I can yyyyeee e the pan and COOK until I can get the latest version for the first to review my attached CV and I am a very nice of the pan and cook until I can do it for the use of ®️®️®️️®️️⚔️✴️⛽❤️️ |
|
| 9. |
Calculate the volume of CO gas required to react with oxygen to give 11.2 L of CO2 gas . |
|
Answer» Good afternoonExplanation:the process by which GREEN plants and some other organisms USE sunlight to synthesize NUTRIENTS from carbon dioxide and water. PHOTOSYNTHESIS in plants generally involves the green pigment chlorophyll and GENERATES oxygen as a by-product. |
|
| 10. |
What is distallition |
|
Answer» ation, process involving the conversion of a liquid into vapour that is SUBSEQUENTLY condensed back to liquid FORM. It is exemplified at its simplest when STEAM from a KETTLE becomes deposited as drops of DISTILLED water on a cold surface.✌️☺️ F0LLOW ME AND MARK AS BRAINLIST ☺️✌️ |
|
| 11. |
calculate the temperature at which the volume of a gas at 127° centigrade will be doubled at. constant pressure? |
| Answer» | |
| 12. |
IV. Answer the following questions in detail: 1. Classify the following as pure substances or mixtures. In case of pure substances, classify whether they are element or compound but in case of mixture, identify whether they are homogeneous or heterogeneous. Air, milk, graphite, gasoline, tap water, distilled water, brass, oxygen, steel, iron, diamond, sodium chloride, iodised table salt, silver Plz sahi answer dena bro plz |
| Answer» | |
| 13. |
What are the major sources of waste? |
|
Answer» tion:SOURCES AND TYPES OF SOLID WASTESSource Typical waste generatorsIndustrial Light and heavy MANUFACTURING, FABRICATION, CONSTRUCTION sites, power and chemical plants.Commercial STORES, hotels, restaurants, markets, office buildings, etc.Institutional Schools, hospitals, prisons, government CENTERS. |
|
| 14. |
How can we prevent chemical pollution? |
| Answer» VENT CHEMICAL pollution by not USING chemical products coarse chemical products POLLUTED the river.Explanation:please mark me as BRILLIANT | |
| 15. |
What are the 4 categories of waste? |
| Answer» TION:For the PURPOSES of this REVIEW these sources are defined as giving RISE to four major categories of waste: MUNICIPAL solid waste, industrial waste, agricultural waste and hazardous waste. | |
| 16. |
What are the effects of industrial waste in ecosystem? |
|
Answer» tion:Water that is discharged from factories, for EXAMPLE, can POLLUTE rivers and lakes with SUBSTANCES like chemicals, waste, and dyes. This water pollution can kill wildlife and harm the overall ECOSYSTEM, and the effects of POLLUTED water have left several plant and animal species endangered. |
|
| 17. |
What are the effects of agricultural waste? |
|
Answer» tion:In many parts in developing COUNTRIES, agricultural solid wastes are indiscriminately dumped or burnt in public places, thereby RESULTING in the generation of air pollution, SOIL contamination, a harmful gas, smoke and dust and the residue may be CHANNELED into a water source thereby polluting the water and aquatic . |
|
| 19. |
Ruui batti oil ko uper ki taaf kaise kich leti hai??? Jabki gravitational force hota hai uske against. |
|
Answer» Ruui batti oil KO uper ki TAAF kaise kich leti hai??? JABKI gravitational FORCE hota hai uske against. |
|
| 20. |
4 kg of ice at -20°C is mixed with 10 kg of water at 20°C in an insulating vessel having a negligible heat capacity. Calculate the final mass of water remaining in the container. Given: Specific heat capacities of water and ice are 4.8 kJ K-1 kg-1 and 2.092 kJ K-1 kg 1, respectively. Molar enthalpy of fusion of ice is 334.7 kJ kg ? |
|
Answer» (- 20)℃ to 0℃ = 20 × 0.5 × 4 × 10^3 = 40 × 10^3 cal.Ice of (+ 20)℃ to 0℃ = 20 × 1 × 10 × 10^3 = 200 × 10^3 cal.=> (200 × 10^3 cal)/(40 × 10^3 cal.) = 5 kgexcess energy (heat) = 80 × 10^3 cal.heat of. ice = 80 cal/GM=> (80 × 10^3 cal.)/(80 cal/gm)= 10^3 gm = 1 kgTotal = (5 KG + 1 kg) = 6 kg |
|
| 21. |
Ruui batti oil ko uper ki taaf kaise kich leti hai??? Jabki gravitational force hota hai uske against. spamers dur rahe |
|
Answer» I don't KNOW I don't know |
|
| 22. |
By Heating the sand in 1000°c after mealting we gain a stone made up of sand??? ( When we cool)?? |
|
Answer» tion:The specific HEAT of WATER is 1 calorie/gram °C = 4.186 joule/gram °C which is HIGHER than any other common substance. As a result, water plays a very important role in temperature regulation. The specific heat per gram for water is much higher than that for a metal, as described in the water-metal example.please mark me as brainliest answer |
|
| 23. |
If we replace HCl with H2So4 (sulfuric acid), what will happen to the previous six substances? Can you write your answer and the reason? |
|
Answer» 123456789098876543111345678Explanation:hueuuhhgvzx42 KA |
|
| 24. |
Draw vapour pressure compostion and boiling point |
|
Answer» okay I DRAW and SEND itExplanation:PLEASE add to brainliest thanks please |
|
| 25. |
What are the after effects of industrial pollution? |
|
Answer» tion:INDUSTRIAL pollution continues to CAUSE significant damage to the earth and all of its inhabitants DUE to chemical WASTES, pesticides, radioactive materials etc. It affects wildlife and ecosystems and disrupts natural habitats. ANIMALS are becoming extinct, and habitats are being destroyed. |
|
| 26. |
Which is consequence of industrial pollution? |
|
Answer» tion:Industrial pollution can also impact air QUALITY, and it can enter the soil, causing WIDESPREAD environmental PROBLEMS. Industrial activities are a MAJOR source of air, water and land pollution, leading to illness and LOSS of life all over the world. |
|
| 27. |
Is biomedical waste a problem? |
| Answer» BIOMEDICAL waste management has recently emerged as an issue of major concern not only to HOSPITALS, nursing home AUTHORITIES but also to the environment. ... Hospital waste is a potential health hazard to the health care workers, public and FLORA and fauna of the area.Explanation:MARK me as brilliant | |
| 28. |
What is difference between soil pollution and contamination? |
|
Answer» Contamination is the PRESENCE of a substance that should not be present naturally. Pollution is when the CONTAMINANT CAUSES HARM to organisms or infrastructure. |
|
| 29. |
Is medical waste harmful? |
|
Answer» Health-care waste contains potentially harmful microorganisms that can INFECT HOSPITAL patients, health workers and the general public. Other potential hazards may include drug-resistant microorganisms which spread from health facilities into the environmentExplanation:MARK me as brilliant Thank you |
|
| 30. |
Q.1. Explain the changes that happen when : a) Magnesium strip is ignited. |
|
Answer» When a piece of MAGNESIUM ribbon is ignited, LIGHT and heat are produced. Purpose/Goal: A QUICK DEMONSTRATION which illustrates the concept of an exothermic reaction, as well as ONE that produces light energy. The heat of formation of magnesium oxide is -601.83 kJ/mol. |
|
| 31. |
Example 3.3 1. Calculate the number of moles for the following: (i) 52 g of He (finding mole from mass) (ii) 12.044 x 1023 number of He atoms (finding mole from number of particles) |
| Answer» | |
| 32. |
2.Calculate the relative molecular mass i) No 2 |
| Answer» MOLECULAR MASS of NO2 = 14 + 32 = 46Explanation: | |
| 33. |
8. Convert into mole. (a) 12 g of oxygen gas (b) 20 g of water (c) 22 g of carbon dioxide. |
|
Answer» a)OXYGEN MOLECULAR mass=32mole=12/32b)WATER mole=20/18c)CARBON mole=22/44 |
|
| 34. |
Give one example of a combination reaction |
| Answer» CHECK this answerExplanation:A reaction in which two or more reactants COMBINE to form a single product is known as a combination reaction. Combination reaction is also known as a synthesis reaction. EXAMPLES of combination reaction. 2Na + Cl2 → 2NaCl. C + O2 → CO2. | |
| 35. |
Csengiucuse. Q.5. Classify and balance the following reactions. (a) NH4OH + FeCl3 = Fe(OH)3 + NHACI |
| Answer» FECL3 +3NH4OH=3NH4cl +FE(OH)3 | |
| 36. |
How many grams of silver nitrate are required to produce 0.25 mol of silver sulfide |
| Answer» | |
| 37. |
A batch of 5 kg of food product has a moisture content of 150% dry basis. Calculate how much water must be removed from this product to reduce its moisture content to 20% wet basis. |
|
Answer» tion:The 20 kg of food at a moisture CONTENT of 80 % WET basis is dried to 50 % wet basis. Calculate the amount of water removedF = 20 kg of raw product |
|
| 38. |
What are five major types of pollution? |
|
Answer» Major forms of pollution include air pollution, LIGHT pollution, litter, NOISE pollution, plastic pollution, soil CONTAMINATION, radioactive contamination, THERMAL pollution, visual pollution, and water pollution.Explanation:pls DROP some thnks pls |
|
| 39. |
What are the 10 types of pollution? |
|
Answer» Major forms of pollution include air pollution, light pollution, LITTER, noise pollution, plastic pollution, soil CONTAMINATION, RADIOACTIVE contamination, thermal pollution, visual pollution, and water pollution. |
|
| 40. |
What are the types of pollution and their effects? |
|
Answer» Major Types of POLLUTION Affecting Our PlanetAir Pollution. Source: Canva. ...WATER Pollution. Source: Canva. SOIL Pollution. Source: Canva. ...Noise Pollution. Source: Canva.Radioactive Pollution. Source: Canva. Thermal/Heat Pollution. Source: Canva. Light Pollution. Source: Canva. |
|
| 41. |
What are the three main categories of biomedical waste? |
|
Answer» Medical waste can be classified into four different categories: infectious, hazardous, radioactive, and general.Infectious wasteWaste that has the possibility of causing infections to humans. It can include human or animal tissue (blood or other body parts), blood-soaked bandages, DISCARDED surgical gloves, cultures, stocks, or swabs to inoculate cultures. Many waste streams in this category, including human or animal tissue, can ALSO be labeled as pathological waste, which requires specific treatment methods. This type of waste is also called biowaste or biomedical waste.Hazardous wasteWaste that has the possibility to affect humans in non-infectious ways, but which meets federal guidelines for hazardous waste under the Resource Conservation and Recovery Act (RCRA). Hazardous waste includes chemicals, both medical and industrial. Some hazardous waste can also be considered infectious waste, DEPENDING on its origin and exposure to human or animal tissue PRIOR to discard. Old drugs, including chemotherapy agents, are sometimes hazardous. Although not RCRA waste, sharps are hazardous in that they can cause injuries. Among waste managers, sharps are objects that can puncture or lacerate the skin; they include needles and SYRINGES, discarded surgical instruments such as scalpels and lancets, culture dishes and other glassware.Radioactive wasteRadioactive waste can be generated from nuclear medicine treatments, cancer therapies and medical equipment that uses radioactive isotopes. Pathological waste that is contaminated with radioactive material is usually treated as radioactive waste rather than infectious waste. Most hospitals generate radioactive waste as do some doctors' offices and veterinary offices if they offer brachytherapy.General waste (Municipal Solid Waste)About 85% of waste generated at medical facilities is no different from general household or office waste, and includes paper, plastics, liquids and other materials that do not fit into the previous three categories. Waste professionals refer to this as municipal solid waste, and it is usually disposed of in landfills.Hey Mate!!!! Here is your answer ♣️ |
|
| 42. |
What are 5 types of water pollution? |
|
Answer» Chemical POLLUTION. ...GROUNDWATER pollution. ...MICROBIOLOGICAL pollution. ...Nutrient pollution. ...Oxygen-depletion pollution. ...EXPLANATION:hope it helps you please drop some thnks pls |
|
| 43. |
Write the differences between miscible and immiscible liquids? How can you separate them? |
|
Answer» Liquids which MIX together and can form a single layer are called MISCIBLE liquids.Liquids which do not mix with each other and can form separate layers are called immiscible liquids. Explanation:They can be separated with process of Fractional Distillation..( process containing DIFFERENT FUNNELS..through which the mediums :- Gases , liquids can be separated ) And yess...fractional distillation...in gases have a different design and for liquids ...I have attached a figure...kindly GO through it ... |
|
| 44. |
4) Define the following:- i) Atomic radius ii) Electropositivity of an elemen |
|
Answer» The atomic RADIUS is defined as one-half the distance between the nuclei of identical atoms that are BONDED together.Electropositivity can be defined as the TENDENCY of an atom to donate electrons to form positively charged cations. The property to form positively charged cations is most probably exhibited by the metallic elements in the PERIODIC table, especially the alkali metals and the alkaline EARTH metals. |
|
| 45. |
Delete any one answer and say |
|
Answer» HOW CAN I DELETE BRO??Explanation:Photosynthesis, the process by which green plants and certain other organisms TRANSFORM light energy into CHEMICAL energy. During photosynthesis in green plants, light energy is captured and USED to convert water, CARBON dioxide, and minerals into oxygen and energy-rich organic compounds. |
|
| 46. |
29- If we take 200 gms of water at 100°C in a closed beaker and supply 6 X 10^4 Joules of energy to it, what happens?(a) There occurs an increase in temperature from 100°C(b) There occurs a decrease in temperature from 100°C(c) No change in temperature occurs but state change takes place(d) No change in temperature of state occurs |
|
Answer» 8titiytiyiyyiou79977979yoy |
|
| 47. |
28- In rainy day evaporation process takes place: (a) Fastly(b) Moderately (c) No change(d) Very slowly |
| Answer» | |
| 48. |
What is infectious waste example? |
|
Answer» Infectious waste: waste contaminated with blood and other bodily fluids (e.g. from DISCARDED diagnostic samples), CULTURES and STOCKS of infectious agents from laboratory work (e.g. waste from autopsies and infected animals from laboratories), or waste from patients with INFECTIONS (e.g. swabs, bandages and disposable medical devices); |
|
| 49. |
What are different causes of soil pollution? |
|
Answer» Main Causes of Soil PollutionSoil pollution is a complex phenomenon, and it can be triggered by a variety of things and activities, from the littering of cigarette butts to excess use of chemical fertilizers. Every cause is linked with another. Pinpointing at one particular cause is quite difficult. HOWEVER, the leading causes are listed below.1. Industrial ActivityIndustrial activity has been the biggest contributor to the problem in the last century, especially since the amount of mining and manufacturing has increased. Most industries are dependent on extracting minerals from the Earth.Whether it is iron ore or coal, the by-products are contaminated, and they are not disposed of in a manner that cannot be considered safe. As a result, the industrial waste lingers in the soil surface for a long time and makes it UNSUITABLE for use.2. Agricultural ActivitiesThe utilization of chemicals has gone up tremendously since technology provided us with modern pesticides and fertilizers. They are full of chemicals that are not produced in nature and cannot be broken down by it. As a result, they seep into the ground after they mix with water and slowly reduce the fertility of the soil.See also Sources and Causes of Water Pollution That Affect Our EnvironmentOther chemicals damage the composition of the soil and make it EASIER to erode by water and air. Plants absorb many of these pesticides, and when they decompose, they cause soil pollution since they become a part of the land.3. Waste DisposalFinally, a growing cause for concern is how we dispose of our waste. While industrial waste is sure to cause CONTAMINATION, there is another way in which we are adding to the pollution. Every human produces a certain amount of personal waste products by way of urine and feces.While much of it moves into the sewer system, there is also a large amount that is dumped directly into landfills in the form of diapers. Even the sewer system ends at the landfill, where the biological waste pollutes the soil and water. This is because our bodies are full of toxins and chemicals which are now seeping into the land and causing pollution of soil.4. Accidental Oil SpillsOil leaks can happen during the storage and transport of chemicals. This can be SEEN at most of the fuel stations. The chemicals present in the fuel deteriorates the quality of soil and make them unsuitable for cultivation. These chemicals can enter into the groundwater through the soil and make the water undrinkable.5. Acid RainAcid rain is caused when pollutants present in the air mix up with the rain and fall back on the ground. The polluted water could dissolve away some of the essential nutrients found in soil and change the structure of the soil.Hey Mate!!!! Here is your answer ♣️ |
|
| 50. |
What are the harmful effects of industrial waste? |
|
Answer» of Industrial WASTE: WATER Pollution. The EFFECTS of industrial pollution are far-reaching and liable to affect the ecosystem for many years to come. ...SOIL Pollution. ...Air Pollution. ...Wildlife Extinction. ...Global Warming. ...Biodiversity LOSS. ...Atmospheric Deposition.도움이 되기를 바랍니다. |
|