Explore topic-wise InterviewSolutions in Current Affairs.

Answer:

Tanks are one of the important traditional sources of irrigation in India, IRRIGATING NEARLY three million hectares EVEN today

Explanation:

Tanks are one of the important traditional sources of irrigation in India, irrigating nearly three million hectares even today. Though considered to be a low cost SOURCE with few environmental problems, the performance of tank irrigation has been POOR and has deteriorated over the years.

Answer:

The variations ENSURED the SPECIES' survival as they allowed the POPULATION members to adapt to the changing climate and conditions. The species are more suited for the changed ATMOSPHERE. The continuity of the species is THUS preserved.

Explanation:

Answer:

Electronegativity, SYMBOLIZED as χ, is the measurement of the tendency of an atom to attract a SHARED pair of electrons. An atom's electronegativity is affected by both its atomic NUMBER and the DISTANCE at which its valence electrons reside from the charged NUCLEUS.

ANSWER:

Constellation, in astronomy, any of certain groupings of stars that were imagined—at least by those who NAMED them—to form conspicuous configurations of objects or CREATURES in the sky. Constellations are useful in TRACKING ARTIFICIAL satellites and in assisting astronomers and navigators to locate certain stars.

ANSWER:

This is your answer

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Answer:

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.

Explanation:

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Answer:

yes

EXPLANATION:

it is SUCESS it is the way to REACH down to up

ANSWER:

RESISTOR

EXPLANATION:

Resistors PROVIDE EXTRA resistance to a circuit.

ANSWER:

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ANSWER:

the SET of numbers used to describe the position and energy of the ELECTRON in an ATOM are called Quantum numbers.

ANSWER:

The uses of SYNTHETIC fibres are , (i) Rayon : Because of its lustrous nature, rayon is USED in making shirts, ties and home furnishings. (ii) Polyester : Though polyester is LIGHT WEIGHT, it is strong and has a good elasticity

EXPLANATION:

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A N S W E R :

• Life on earth depends on resources LIKE soil, water, air and energy from sun.

• Uneven heating of air over land and water - bodies causes winds.

• Evaporation of water from water - bodies and subsequent condensation gives us rain.

• POLLUTION of air, water and soil affect the quality of life.

• We need to CONSERVE our natural resources and use them in a sustainable manner.

• Various nutrients are used again and again in a cycle fashion. This leads to a certain balance between the various components of the BIOSPHERE.

❍ Natural Resources :

Natural Resources : The resources AVAILABLE on the earth and the energy from the sun are necessary to meet the basic requirements of all life forms on the earth.

The stocks of nature which are useful to mankind are known as natural resources.

air, water, soil, minerals etc.

❍ Biosphere :

Biosphere : All living things on earth together with atmosphere, the hydrosphere and the lithosphere interact and make life possible is known as biosphere. It may be :

Biotic components : Plants and animals.

Abiotic components : Air, water and soil.

❍ AIR :

• Air is a mixture of different gases.

• Air contains oxygen which is essential to living organisms for respiration So it is called breath of life.

Role of Atmosphere :

• Air is a bad conductor of heat. It keeps the average temperature of the earth constant during the day and even during the course of the whole year.

• Prevents the sudden increase in temperature during day time and during the night, it slows down the escape of heat into our outer space. E.g., At moon, there is no atmosphere and so the temperature varies from to .

The Movement of Air : Winds :

• During the day, the direction of wind is from sea to land. This is because the air above the land gets heated faster and starts rising.

• During the night, the direction of wind is from land to sea. This is because at night, both land and sea start to cool.

• The movement of air from one region to the other creates winds.

❍ RAIN :

• Rain is formed by evaporation and condensation of water through water cycle in which distribution of water takes place. Rain is very important because it carries out all the agriculture processes in the plants.

• So we should conserve rain by contracting dams, pools, etc.

Air Pollution :

• An increase in the content of harmful substance (pollutants) in the air like carbon dioxide, carbon monoxide, oxides of sulphur, nitrogen, fluoride, lead, nickel, arsenic and dust particles etc. causes air pollution. It may cause :

In humans : Respiratory and renal problems, high blood pressure, eye irrigation, cancer.

In plants : Reduced growth degeneration of chlorophyll, mottling (patches/spots of colour) of leaves.

___________________________

[ NOTE : Diagram is in the attached. ]

Natural Resources

___________________________

ANSWER:

A HOE

is a tool

used for

removing

weeds

Hydroelectricity is electricity made by generators that are PUSHED by the MOVEMENT of WATER. It is usually made with dams that block a river to make a reservoir or collect water that is PUMPED there.

ANSWER:

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EXPLANATION:

आई एम सो सो सो सॉरी बट आई कैन सर्च आंसर व्हाट इस करेक्ट

Explanation:

It means the wealth of the country has been accumulated by a SELECT few. In a country like India where there are huge divide between the rich and the poor, the gap is widening. Just to put things into PERSPECTIVE of how large the gap is, 70–75% of the country wealth is with 1% of the population as of 2017–18

The PROBLEM LIES not with the SCARCITY of resources but with the concentration of resources. A major part of wealth in India is accumulated by a small group of people.

Answer:

I) Clinical Thermometer

1.Temperature range if 35 to 42 0 c

2.Used to measure human body temperature

3.It has kink which prevents immediate backflow of mercury

Laboratory thermometer

1.Temperature range is -10 to 110-degree Celcius

2.Used to measure temperature in the laboratory

3.It does not have a kink

II) Acid

1.An acid is any CHEMICAL compound once dissolved in water produces a solution with hydrogen ion activity more than purified water.

2.Relies on the concentration of the hydronium ions.

3.Acetic acid CH3COOH and sulphuric acid

4.Would depend upon the temperature acids would look solid, liquid, or in the form of gas. It would also have a sour taste.

5.Acids would release hydrogen ions (h+) when mixed with water.

6.Would turn litmus PAPER red.

Bases

1.A base is an aqueous substance that could absorb hydrogen ions.

2.Relies on the concentration of the HYDROXIDE ions.

3.Sodium Hydroxide (NaOH) and Ammonia.

4.Bases would feel slippery and solid in nature (EXCEPT for ammonia, which is gaseous). It would have a bitter taste.

5.Bases would release hydroxide ions(OH-) when mixed with water.

6.Would turn litmus paper BLUE.

Explanation:

QUANTUM mechanics, Quantum physics, the theory of relativity, etc are the modern subjects that interests, ASTOUND, and confuse almost everybody. These topics form the BASIS of modern physics. HOWEVER, the very first-time quantum theory was incorporated in Bohr’s Model of an atom or Bohr atomic model. Later this model became the predecessor of complete quantum mechanical models.

Answer:

Friction is the force resisting the relative motion of SOLID SURFACES, FLUID layers, and material elements sliding against each other. There are several types of friction: DRY friction is a force that opposes the relative LATERAL motion of two solid surfaces in contact.

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Answer:

No, I don't think we have to TASTE or consume an unknown SPECIES of plant. It could be dangerous and poisonous or it can be safe. But to be on the safe SIDE we shouldn't consume any unknown plant, it MAY cause serious health consequences and even SOMETIMES leads to death.

Explanation:

Why are called hamburgurs if there's no ham in them? They ACTUALLY get their NAME from HAMBURG, Germany, home of a CUT of beef called the Hamburg steak that eventually evolved into what we now consider hamburgurs.

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EXPLANATION:

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GAME FREE FIRE

ANSWER:

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ANSWER:

at 4° C

the DENSITY of WATER is 1g/cc

 or 1 kg/m³

Explanation:

ANSWER:

H2CO3

EXPLANATION:

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Answer:

Household Water Uses

Common household uses consume a lot of water. It may take between 30 and 40 gallons for one bath while the average toilet uses about 5 gallons of water per flush. Other estimated household use averages in America include:

Approximately 20 to 40 gallons of water for one shower.

Washing machines use an average of 25 gallons per load.

The kitchen sink takes roughly 20 gallons per day for preparing food and washing dishes.

The bathroom sink, used for washing hands, shaving and BRUSHING teeth, requires about 15 gallons per day.

Much of our RESIDENTIAL freshwater RESOURCES are also used for watering lawns, flower beds, and vegetable gardens, as well as washing cars and filling swimming pools. Also, it should be noted that many people use chemicals on lawns and gardens before watering with freshwater resources. This practice washes the chemicals off of plants into storm drains and straight into rivers and streams where fish make their homes. This kind of polluted water can kill fish and wildlife.

Communities

Cities use water for firefighting, street cleaning, and watering public areas such as parks, grass, trees, shrubs, and flowers. Water is also used to fill public drinking fountains, including those at schools and libraries. All of the different businesses in your community also use large amounts of water.

Think about all the water that is used by restaurants, hospitals, laundries, dry cleaners, golf courses, hotels, car washes, beauty shops, barbershops, gas stations, and health clubs as well as all of the other businesses in town. These all add up to quite a big demand on local water supplies.

Farming

The amount of water needed to run a farm is tremendous. When we think of water on a farm, we think of watering crops; but the amount of water needed on a dairy farm is just as large. Chickens, pigs, sheep, and all the other animals in a farmyard need drinking water to stay alive. Food must be grown for them to eat, and water is also required in the cooling systems used to keep the production of meat fresh.

Vegetable and grain crops also require water. Water is used in spreading fertilizers, herbicides, and pesticides, which produce a greater crop yield (which also contaminates the water). Most of the water used on farms is used for irrigation. Studies show that by using drip irrigation, FARMERS can conserve up to 60% of the water that it would normally take to irrigate their crops using other systems of irrigation.

It takes about 26 gallons of water to produce one ear of corn while it takes about 2000-2500 gallons of water to produce one pound of beef. Around 120 gallons of water is required to produce one egg. About 300 gallons of water is needed to produce one loaf of bread, and it takes about 12,000 gallons of water to grow a bushel of wheat. Believe it or not, about 1,400 gallons of water are used during the final production of one fast-food meal including a burger, fries, and a soft drink.

Generating Electricity

Hydroelectric plants capture the kinetic energy of falling water to make electricity and are the largest users of water. This is done with a dam that forces the water level to go up so that the water will have more power when falling. The force of the falling water PRESSING against the turbines' blades causes them to spin. The spinning turbines transmit the kinetic energy of the falling water to generators. The generators spin when the turbines spin generating electricity that will be transmitted on the power lines to homes and businesses.

Of all the electricity in the world, about 20% is generated by hydropower. About 10% of all the electricity in the United States is provided by hydropower. Hydropower generating prevents a lot of pollution. It is clean and does not leave any waste.

Because of the electricity generated by hydropower, the amount of oil and coal needed to produce enough electricity is reduced. It prevents the need to burn about 22 billion gallons of oil or 120 million tons of coal each year.

The amount of electricity that a hydroelectric plant produces depends on two things. The first is how far the water must fall to turn generators and the second is the quantity of water that is falling. The higher the dam, the further the water must fall and more electric power is produced. If the water has to fall twice as far, there will be twice as much electricity generated. The quantity of water that falls also affects the amount of power produced. The more water that flows through the turbines making them spin, the more electric power is produced.

Industry

Water is also essential in industry, as it is heated and the steam is used to run machinery. Water is used to cool hot metal such as in the pr

HYDRO power is electrical energy produced through the power of MOVING water. In MODERN TECHNOLOGY, hydropwer moves

Hydro power is electrical energy produced through the power of moving water. In modern technology, hydropwer moves

Hydro power is electrical energy produced through the power of moving water. In modern technology, hydropwer moves

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Write WORD EQUATIONS for two chemical REACTIONS with the help of

given in the box.

(2)

Air, copper sulphate, IRON, vinegar, iron oxide,

carbon, dioxide, iron sulphate, copper, lime

water, water

ANSWER:

ऊष्मा का हास ही संघनन का कारण होता है। ... तब अतिरिक्त जलवाष्प द्रव में संघनित हो जाता है और जब यह सीधे ठोस रूप में परिवर्तित होते हैं तो इसे ऊर्ध्वापातन कहते हैं। स्वतंत्र हवा में, छोटे-छोटे कणों के चारों ओर ठंडा होने के कारण संघनन होता है तब इन छोटे-छोटे कणों को संघनन केंद्रक कहा जाता है।

ACID rain is when the rain's ph value lessens from 7.0 to 5.0

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EXPLANATION:

CHEMICAL CHANGES are not USUALLY REVERSIBLE

Answer:

A concave MIRROR is used as the reflector in search lights, head lights of MOTOR vehicles, SOLAR cookers, torches and in table lamps. A convex mirror is used in automobiles such as scooters, trucks and buses as rear view mirror to see the TRAFFIC behind the vehicle.

Answer:

No

Explanation:

because, a house which has no VENTILATORS is not a SAFE or healthy house to live in. The air circulation is not there is such a house. So, it has no FRESH air. Because WARM air rises up and goes out through ventilators and fresh air comes in through windows.

Answer:

CANOPY layer

Tropical rainforests have four layers: Emergent Layer. These giant TREES THRUST above the DENSE canopy layer and have huge mushroom-shaped crowns. ... Canopy Layer.

Explanation:

Answer:

The performance of the Gram Stain on any sample requires four basic steps that include applying a primary stain (CRYSTAL violet) to a heat-fixed smear, followed by the addition of a mordant (Gram's Iodine), rapid DECOLORIZATION with ALCOHOL, acetone, or a MIXTURE of alcohol and acetone and lastly, counterstaining with ..

Explanation:

Sustainable water means a nation that can be water self-sufficient: ENSURING there is enough water to MEET multiple needs, from agriculture to municipal and INDUSTRIAL. ... Water sustainability, meanwhile, can also mean ENERGY neutrality by coupling traditional water treatment technologies with renewable energies.

ANSWER:

(a) Synthetic FIBRES are also CALLED or fibres. (B) Synthetic fibres are synthesised from raw material called . (c) LIKE synthetic fibres, plastic is also a . Give examples which indicate that nylon fibres are very strong.

...

Fibre-wise.

S.No Option

c. its fibres can also be woven like those of natural fibres.

(1) It is a white transparent crystalline solid. (2) It is soluble in water. (3) The solution of washing SODA in water is alkaline which turns RED litmus to blue. (4) It has cleansing properties.

Uses of Washing Soda:

• Used as a cleansing AGENT in industries and household.
• It finds its application in paper, textile, SOAP, and detergent industries.
• It is used in the process of softening of water.
• It is used in the manufacturing of glass.
• It is one of the most important agents in laundries.

I hope it will HELP you.

Answer:

54 NEWTON . because MOON GRAVITY is 1/6 of EARTH gravity

Answer:

Deforestation, the clearing or thinning of forests by humans. Deforestation represents ONE of the largest ISSUES in global land USE. Estimates of deforestation traditionally are based on the area of forest cleared for human use, including removal of the TREES for wood PRODUCTS and for croplands and grazing lands.

ANSWER:

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Answer:

Pine oil is added in the froth FLOTATION method to create froath or bubble so that metal can be purify easily because pine oil prevents the ORE from gangue for furthur mixing. Pine oil ALSO acts as best SUBSTANCE for forming froth for the minerals. It also increases the non wettability of mineral particles.

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Answer:

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Explanation:

First we will seperate the iron nails with the help of a magnet. The iron nails seperate out and sugar and sand are left. ... Then , HEAT the sugar solution on a BUNSEN burner such that water gets evaporated and the sugar is left behind.In this way , we can SEPARATE a MIXTURE of sugar,sand and iron nails.

Answer:

Metals are sonorous because electron bonding in metals is HIGHLY delocalized due to very low ELECTRO negativity. Non-metals are not sonorous. They are poor CONDUCTORS of heat and ELECTRICITY. They do not possess METALLIC lusture.

.

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EXPLANATION:

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ANSWER:

because the GLASS heating capacity is low but the STEEL glass capacity is HIGH when we put TEA in mirror glass we easily put it up but because of heating capacity of steel we are not able to put it up

Answer:

All living ORGANISMS REQUIRE food. Plants can make their food themselves but animals including humans cannot because they do not possess chlorophyll PIGMENT for PHOTOSYNTHESIS. They get it from plants or animals that eat plants.

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EXPLANATION:

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