Explore topic-wise InterviewSolutions in Current Affairs.

The angle of elevation of the TOP of a tower from a POINT on the ground, which is 30 m away from the foot of the tower, is 30°. Find the HEIGHT of the tower

ong>Answer:

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the INTELLECTUAL and practical ACTIVITY encompassing the SYSTEMATIC study of the STRUCTURE and behaviour of the physical and natural world through observation and experiment

True

False

True

True

False

True

False

False

False

True

ong>Answer:

The two FEATURES of carbon that give rise to a large number of COMPOUNDS are as follows: (i) CATENATION: It is the ability to form bonds with other atoms of carbon. (ii) TETRAVALENCY: With the valency of four, carbon is capable of bonding with four other atom

Explanation:

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ong>Carbon dioxide is the waste product of cellular respiration that you breathe out each time you breathe. Blood picks up OXYGEN and RELEASES carbon dioxide in the lungs. The OPPOSITE takes PLACE in the cells where the blood releases oxygen and picks up carbon dioxide..

ong>Answer:

KYA pata

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ong>Answer:

He answer is true

Explanation:

Such as the EPICENTER of the EARTH

PRODUCTS MADE of jute

cloth

medicine

cloth for mourning

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SINCE then the company has three more YEARS of

Around 12,000 YEARS AGO..

302 BONES are there in HUMAN body

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ong>Answer:

1) Wash hands often.

2) Keep RAW MEATS and ready-to-eat foods separate.

3) Cook to proper temperatures.

4) REFRIGERATE PROMPTLY to 40 degrees Fahrenheit or below.

PLASTIC surgery is the practice of performing operations to repair or REPLACE skin which has been DAMAGED, or to improve people's appearance.

BULB --- onion

pistil --- ovary

stamen ---ANTHER

rhizome ---ginger

TENDRILS ---GRAPES

ong>ANSWER:

a FORCE that STIMULATES change or PROGRESS within a system or process.

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Explanation:

ong>ANSWER:

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Explanation:

Please Top Up 5000 Diamonds In Free Fire Id 1260020610 Top Up From Codashop Or Garena Free Fire Top Up Center Please  Do Justice To Me

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ong>Answer:

Benefits of Organic Mulching

Benefits of Organic MulchingPrevent germination and growth of weeds, lessens erosion of SOIL, reduces RUNOFF, increase moisture retaining power of soil, improves infiltration and percolation of WATER, advances the soil CONDITION, make soil porous and

augments better growth of roots.

Explanation:

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Explanation:

ong>Answer:

SODIUM CHLORIDE, also known as table SALT, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions. It is commonly USED as a condiment and FOOD preservative. Salt can be created by adding two very reactive elements together: sodium (Na(s) metal and chlorine (Cl2(g) gas.

nature of the chemicals used in laboratories is either basic, acidic or neutral. This characteristic depends on the ions they release. A chemical is said to be acidic if it releases H+ ions in its AQUEOUS solutions. A chemical is said to be basic if it releases OH– ions in its aqueous solutions. In this experiment, we will learn how to find the pH of acids and bases.

Aim:

To determine the pH of the given samples using pH paper or universal indicator. The samples whose pH has to be determined are-

Dilute CH3COOH

Dilute NaOH

Salt NaCl

Dilute NaHCO3

Water

Lemon juice

Materials required:

Six test tubes

Test tube stand

Dilute acid CH3COOH

Dilute base NaOH

Salt NaCl (preparation: dissolve 1 gram salt in 10 mL distilled water)

Water

Lemon juice

Dilute NaHCO3

Glass rod

Measuring cylinder (10 mL)

Standard pH colour chart

pH paper

Glass rod

Dropper

Universal indicator

Theory:

What is pH?

pH is a measure of hydrogen ion CONCENTRATION to determine the alkalinity or acidity of a solution.

If the pH value of a solution is less than 7 it is an acidic solution

If the pH value of a solution is greater than 7 it is a basic solution

If the pH value of a solution is equal to 7 it is a neutral solution

What is pH scale?

The pH scale consists of values which range from 0 (very acidic) to 14 (very alkaline). The numbers on the scale help to determine the hydrogen ion concentration.

What is pH paper?

pH paper can help us know if a solution is basic, acidic or neutral. When the pH paper is dipped into a solution whose pH has to be determined, a colour will be developed. This colour is compared with the standard pH colour chart. Instead of pH paper, we can also use universal indicator paper or universal indicator solution.

What is universal indicator?

A universal indicator is a mix of pH indicator solutions that are designed to determine the pH of solutions over a wide range of values. Put a drop of solution on the universal pH indicator paper. The colour developed on the paper is matched with the standard pH colour chart.

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concave LENS is UR answer

ong>Answer:

A kaleidoscope is an optical instrument with two or more reflecting surfaces tilted to each other at an angle, so that one or more (parts of) objects on one end of the mirrors are seen as a regular symmetrical pattern when viewed from the other end, due to repeated REFLECTION. The reflectors (or mirrors) are usually enclosed in a tube, often containing on one end a cell with loose, colored PIECES of glass or other transparent (and/or opaque) materials to be reflected into the viewed pattern. Rotation of the cell causes motion of the materials, resulting in an ever-changing view being presented.Kaleidoscope is an optical toy consisting of two mirrors at a particular angle. Some common uses of the kaleidoscope are: Kaleidoscope produces beautiful patterns that are used by fashion designers. A kaleidoscope is used as a toy for entertainment.

A periscope is defined as an instrument used for observing over, around or through an obstacle or object which is prevented by direct line of SIGHT. It consists of an outer case with mirrors at each end at 45° angle. These mirrors are placed parallel to the surface. Jules Carpentier, a French engineer and inventor designed the submarine periscope. It was widely used during World War II in tanks and armoured vehicles.A periscope works on the basis of laws of reflection of light. Any object in the line of sight reflects the light making it visible in the periscope.

The mirrors are placed at an angle of 45° such that when light falls on one of the mirrors, it gets reflected back making it fall on the other mirror which further gets reflected back to the observer’s eyes. But in more complex periscopes, prisms are used in PLACE of mirrors. The instrument does not produce any magnification and crossline images.

Other than viewing objects that are not in the direct line of sight, the following are various other uses of periscope:

• It is used in submarines to determine the distance of a torpedo and HELPS in deciding the right time for the attack.
• It is used in a nuclear reactor to observe the chemical reactions that are taking place.
• In military periscopes are used to observe from their hiding position. The main disadvantage of a periscope is that it can be used by one person at a time.
• Tanks and armoured vehicles use the periscope to inspect the surrounding.

Explanation:

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ong>Answer: 1.25× m/s

Explanation:

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two IMPORTANT stages in the process of OBTAINING metals from ore are Extraction and Purification.

• Purification is the SEPARATION of METAL from bits, sand, and rocks.
• Extraction of metals is the process of extracting(or obtaining) metals from from other metals present in ores.

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ong>Answer:

Cotton: cotton comes from cotton lant. Both , plant and the fibre are called cotton.cotton is ... Ans. Fabric of cotton saree is made by weaving cotton YARN which in ... Classify the following fibres as neutral or SYNTHETIC :.

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ong>Explanation:

Short Inspirational stories are powerful reads;

The great thing about them is that they’re so easy to DIGEST, and there’s always a moral at the end of the story.

Whether they’re true stories or not is another thing, as MANY of them are LEGENDS supposedly hundreds of years old.

However, the stories that I’m talking about are so powerful and inspirational that many of them REALLY do get you thinking and even leave you speechless at times.

is it NECESSARY to TELL you

RAIN WATER HARVESTING.

ong>Answer:

XYLEM is complex permanent tissue and is also known as conduction TISSUES. It consists of tracheids, vessels, xylem parenchyma and xylem fibres. The cells have thick walls, and many of them are dead. Tracheids and vessels are tubular STRUCTURES.

ong>Answer:

a famine

EXPLANATION:

just like my comment

example BENGAL famine

ong>Answer:

P has ground STATE valence shell electronic configuration 3s

2

3p3 and the first excited state valence shell electronic configuration is 3s

1

3p

3

3D

1

.

P undergoes sp

3

d hybridization and has trigonal bipyramidal geometry.

Axial Cl ATOMS experience higher electron REPULSION than equatorial chlorine atoms.

Hence, the axial bonds are LONGER as compared to equatorial bonds.

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There is only one global ocean.

Historically, there are four named ocean basins: the Atlantic, Pacific, Indian, and Arctic.

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ong>Answer:

OVUM is FERTILIZED by SPERM cell in __fallopian TUBE __.

swer :

Science, any system of knowledge that is concerned with the PHYSICAL WORLD and its PHENOMENA and that entails unbiased observations and systematic experimentation. ... In GENERAL, a science involves a pursuit of knowledge covering general truths or the operations of fundamental laws.

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Explanation:

How to protect yourself from noise pollution

Know which noises can cause damage (those at or above 85 decibels)

Turn your music down, especially when using headphones.

Wear EARPLUGS or proper earmuffs when involved in a loud activity (special earplugs and earmuffs are AVAILABLE at hardware and sporting GOODS stores)

Be ALERT to loud noise in your environment

ong>Answer:

xylem tissue is part of BODAY that HELPS DIGESTIVE SYSTEM for digesting, it also helps our body for MANY functions

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ong>EXPLANATION:

The image FORMED by a concave MIRROR is REAL or virtual depending on the position of the object infront of the mirror. It is inverted or erect and MAGNIFIED or diminished depending on the position of the object infornt of the mirror.

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ong>Answer:

Teflon

Teflon is a brand name of a chemical coating, polytetrafluoroethylene (THANKFULLY shortened and CALLED PTFE).

Polyacrylic

Poly is a synthetic high-molecular weight polymer of acrylic acid. The IUPAC name is poly.

Fiberglass

Fiberglass, or fibreglass is a COMMON TYPE of fiber-reinforced plastic using GLASS fiber.

Polyester

Polyester is a synthetic fiber derived from coal, air, water, and petroleum

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The intellectual and practical activity ENCOMPASSING the systematic study of the structure and behaviour of the physical and natural world through OBSERVATION and experiment.

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gills

150

rain

copper

motion

यह तापमापी 0° से 100° सेल्सियस तक 100 समान भागों में बँटा रहता है। इसमें जल के हिमांक के लिए 0°C तथा क्वथनांक के लिए 100°C लिखा जाता है।

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7

Explanation:

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!! bicycle is a simple machine .which does not CONTAIN any harm to the ENVIRONMENT

and cycling is ALSO a GOOD exercise

ong>Answer:

Earth has both LIQUID and solid water present. An example of how both of these FORMS can be FOUND on Earth is that hail is solid, and rain is a liquid. They are both water but just in different forms.

ong>Answer:

Some common examples of basic radicals are Na+, Ba2+, Fe3+ etc. Composite Radicals-Acetylimino, CYCLOHEXANE carbonyl etc. Bivalent Acidic Radicals-The ion FORMED after REMOVAL of Hydrogen ion from an acid is called as Acidic Radical.

ong>ANSWER:

True

Explanation:

As cooling CONVERT the substance in solid so they become hard to move