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A pond of clear water appears less deep than it really is. This is due to-

General Science Class-7th Class 8th Class 9th

Q. 4 of Quiz-588 (Que-ID : 564)

A pond of clear water appears less deep than it really is. This is due to-

  • Reflection
  • refraction
  • The transparency of water
  • Dispersion

Ans → (b)refraction

Explanation →

This question is taken from this post → General Science Quiz | Practice test for SSC, DSSSB, UPSSC, UKSSC, railway, and RRB Exams - attemp/practice


More MCQs in - General Science Quiz | Practice test for SSC, DSSSB, UPSSC, UKSSC, railway, and RRB Exams

Directions : (Q.1 - Q.15 Physics part)

Q. 1 of Quiz-588 (Que-ID : 558)

Galvanized iron is coated with a thin coating of-

  • copper
  • zinc
  • aluminium
  • white lead

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Q. 3 of Quiz-588 (Que-ID : 563)

 Which of the following is the most viscous medium?

  • Coaltar
  • Water
  • Alcohol
  • Air

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Q. 4 of Quiz-588 (Que-ID : 564)

A pond of clear water appears less deep than it really is. This is due to-

  • Reflection
  • refraction
  • The transparency of water
  • Dispersion

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Q. 5 of Quiz-588 (Que-ID : 567)

Conversion of heat into electrical energy can be achieved by using a -

  • ammeter
  • hydromere
  • voltmeter
  • thermocouple

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Q. 6 of Quiz-588 (Que-ID : 568)

What is the SI unit of pressure ?

  • Pascal
  • Dyne
  • Newton
  • Jule

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Q. 7 of Quiz-588 (Que-ID : 578)

What is the full form of RADAR ?

  • Radio Detecting and Ranging
  • Radio Detect and Rangs
  • Radio Device and Ranging
  • Region Device and Ranging

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Q. 8 of Quiz-588 (Que-ID : 579)

Which of the following is the fastest communication channel ?

  • Radio wave
  • All are operating at nearly the same propagation speed
  • Optical fiber
  • Microwave

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Q. 9 of Quiz-588 (Que-ID : 580)

Light from the sun reaches us in nearly

  • 5 min
  • 4.30 hrs
  • 5.30 hrs
  • 8 min

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Q. 10 of Quiz-588 (Que-ID : 581)

Which Colour has the Longest Wavelength

  • Violet
  • Yellow
  • White
  • Red

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Q. 11 of Quiz-588 (Que-ID : 582)

The capacity of communication channel is measured in

  • Band rate
  • Band width
  • Data flow
  • Bit capacity

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Q. 12 of Quiz-588 (Que-ID : 583)

Which of the following has the highest frequency ?

  • x-rays
  • cosmic rays
  • microwaves
  • radio waves

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Q. 13 of Quiz-588 (Que-ID : 584)

In a freezer ice cube will be formed more quickly in trays made of

  • rubber
  • plastic
  • aluminium
  • wood

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Q. 14 of Quiz-588 (Que-ID : 585)

Atmospheric pressure exerted on earth due to

  • gravitational pull
  • rotation of earth
  • revolution of earth
  • uneven heating of earth

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Q. 15 of Quiz-588 (Que-ID : 586)

Which of the following is vector quantity ?

  • momentum
  • pressure
  • Energy
  • work

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Directions : (Q.16 - Q.30 Chemistry part)

Q. 16 of Quiz-588 (Que-ID : 587)

Neutrons were discovered by 

  • James Chadwick
  • Ernest Rutherford
  • J. J. Thomson
  • John Dalton

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Q. 17 of Quiz-588 (Que-ID : 588)

Atomic mass of an element equal to the sum of number of 

  • electrons and protons only
  • protons and neutrons only
  • electrons and neutrons only
  • electrons, protons and neutrons

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Q. 18 of Quiz-588 (Que-ID : 589)

Which one of the following is the largest composition in biogas ?

  • Carbon dioxide
  • Methane
  • Hydrogen
  • Hydrogen sulphide

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Q. 19 of Quiz-588 (Que-ID : 590)

The number of maximum electron in N shell is -

  • 2
  • 8
  • 18
  • 32

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Q. 20 of Quiz-588 (Que-ID : 591)

Vinegar is also known as -

  • ethanoic acid
  • nitric acid
  • sulphuric acid
  • tartaric acid

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Q. 21 of Quiz-588 (Que-ID : 592)

Which of the following burns by producing a yellow, luminous flame ?

  • coal
  • LPG
  • Wax
  • charcoal

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Q. 22 of Quiz-588 (Que-ID : 593)

The modern periodic table was prepared by -

  • Dobereiner
  • Newlands
  • Bohr
  • Mendeleev

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Q. 23 of Quiz-588 (Que-ID : 594)

Plaster of Paris is made up of -

  • Marble
  • Cement
  • Gypsum
  • Limestone

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Q. 24 of Quiz-588 (Que-ID : 595)

How much amount of urea will be required for supplying 1 kg of nitrogen ?

  • 2.0 kg
  • 2.2 kg
  • 2.5 kg
  • 2.7 kg

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Q. 25 of Quiz-588 (Que-ID : 596)

Oxygen is absent in - 

  • Kerosene
  • Glass
  • Soil
  • Cement

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Q. 26 of Quiz-588 (Que-ID : 597)

The pH value of water is

  • 4
  • 7
  • 12
  • 18

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Q. 27 of Quiz-588 (Que-ID : 598)

Which of the following is also known as laughing gas ?

  • Nitric oxide
  • Nitrous oxide
  • Nitrogen pentoxide
  • Nitrogen

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Q. 28 of Quiz-588 (Que-ID : 599)

Who is regarded as the father of modern chemistry ?

  • Rutherford
  • Einstein
  • Lavoisier
  • C. V. Raman

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Q. 29 of Quiz-588 (Que-ID : 600)

The cooking gas LPG mainly consist of

  • Ethene
  • Propene
  • Propane and Butane
  • Ethyne

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Q. 30 of Quiz-588 (Que-ID : 601)

What is the dominant chemical present in detergent powder ?

  • Hydrochloric acid
  • Sodium carbonate
  • Calcium carbonate
  • Sodium alkyl sulphate

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Directions : (Q. 31 - Q. 45 Biology Part)

Q. 31 of Quiz-588 (Que-ID : 602)

which one of the following plant tissues has dead cells ?

  • Epidermis
  • Parenchyma
  • Collenchyma
  • Sclerenchyma

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Q. 32 of Quiz-588 (Que-ID : 603)

Lights enters the eye through a thin membrane called 

  • retina
  • cornea
  • pupil
  • iris

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Q. 33 of Quiz-588 (Que-ID : 604)

Which of the following is not a Reptile ?

  • Green-turtle
  • Crocodile
  • Salamandra
  • Garden Lizard

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Q. 34 of Quiz-588 (Que-ID : 605)

which of the following statements is not a micronutrient in plants ?

  • Iron
  • Manganese
  • Copper
  • Magnesium

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Q. 35 of Quiz-588 (Que-ID : 606)

Red colour of tomato is caused due to the presence of 

  • Vitamin C
  • Lycopene
  • Chromoplasts
  • Leucoplasts

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Q. 36 of Quiz-588 (Que-ID : 607)

Which acid is produced in human stomach for digestion purpose ?

  • Sulphuric Acid
  • Hydrochloric Acid
  • Acetic Acid
  • Nitric Acid

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Q. 37 of Quiz-588 (Que-ID : 608)

Chromosome number in any species 

  • increase by age
  • decrease by age
  • is constant
  • increase with the weight

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Q. 38 of Quiz-588 (Que-ID : 609)

In human body percentage of which element is highest?

  • Hydrogen
  • Nitrogen
  • Carbon
  • Oxygen

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Q. 40 of Quiz-588 (Que-ID : 611)

Tulsi plant has medicinal values due to presence of the following 

  • Inorganic acid
  • Organic acid
  • Phenols and Flavonoids
  • None of the above

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Q. 41 of Quiz-588 (Que-ID : 612)

The exposed skin of our body starts cracking in winter season due to

  • rainy season,
  • high humidity
  • summer season
  • low humidity

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Q. 42 of Quiz-588 (Que-ID : 613)

AIDS is caused by 

  • Helminth
  • Bacteria
  • Fungus
  • Virus

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Q. 43 of Quiz-588 (Que-ID : 614)

Which nutrient provides the maximum energy on breakdown?

  • Fibres
  • Proteins
  • Fats
  • Carbohydrates

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Q. 44 of Quiz-588 (Que-ID : 615)

Which organ in the human body helps to maintain balance ?

  • Heart
  • Liver
  • Ear
  • Brain

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Q. 45 of Quiz-588 (Que-ID : 616)

Hemoglobin is the protein inside red blood cells that carries 

  • Oxygen
  • Carbon dioxide
  • Nitrogen
  • Ozone

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Q. 17 of Quiz- (Que-ID : 3435)

Natural genetic engineer is :

  • Bacillus subtilis
  • Pseudomonas sp
  • Escherichia coli
  • Agrobacterium tumefaciens

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Directions : (प्रश्न 16 से 20) प्रत्येक प्रश्न में दिए गए वाक्य को व्यक्त करने के लिए  उपयुक्त लोकोक्ति का चयन कीजिए।

Q. 19 of Quiz- (Que-ID : 1009)

चाहने वाले कि इच्छा ही सर्वोपरि होती है | इस वाक्य के लिए उपयुक्त लोकोक्ति है-

  • अपना हाथ जगन्नाथ
  • पिया चाहे सो सुहागिन
  • मीटौ सोई जो जाहि भावै
  • बिंध गया सो मोती

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Q. 10 of Quiz- (Que-ID : 3028)

To prevent over – ripening, bananas should be

  • given a dip in ascorbic acid
  • maintained at room temperature
  • refrigerated
  • stored at the top of refrigerator

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Q. 8 of Quiz- (Que-ID : 579)

Which of the following is the fastest communication channel ?

  • Radio wave
  • All are operating at nearly the same propagation speed
  • Optical fiber
  • Microwave

Discuss View Answer

Q. 8 of Quiz- (Que-ID : 3526)

Fluoride pollution mainly affect

  • Teeth
  • Kidney
  • Brain
  • Heart

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Q. 8 of Quiz- (Que-ID : 3176)

Which membrane protects the eyes of frog in water?

  • Tympanum
  • Skin
  • Sebaceous
  • Nictitating

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Q. 5 of Quiz- (Que-ID : 3273)

Which of the following is a liverwort?

  • Sphagnum
  • Funaria
  • Marchantia
  • Polytrichum

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Q. 22 of Quiz- (Que-ID : 3015)

Division of nucleus without being followed by cytokinesis results into

  • Phargmoplast
  • Polyploidy
  • Uninucleate condition
  • Multinucleate condition

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Q. 33 of Quiz- (Que-ID : 983)

Which country is the chief exporter of Copper?

  • Morocco
  • South Africa
  • Ghana
  • Zambia

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Q. 13 of Quiz- (Que-ID : 3556)

Which of the following types a PEM cell belongs to?

  • Electrolytic cell
  • Fuel cell
  • Dry cell
  • Galvanic cell

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Q. 2 of Quiz- (Que-ID : 2870)

Cu ions released from copper releasing intrauterine devices (IUDs)

  • prevent ovulation
  • make uterus unsuitable for implantation
  • decrease phagocytosis of sperms
  • suppress sperm motility

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Q. 45 of Quiz- (Que-ID : 616)

Hemoglobin is the protein inside red blood cells that carries 

  • Oxygen
  • Carbon dioxide
  • Nitrogen
  • Ozone

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Q. 12 of Quiz- (Que-ID : 583)

Which of the following has the highest frequency ?

  • x-rays
  • cosmic rays
  • microwaves
  • radio waves

Discuss View Answer

Directions : SSC 2022 question

Q. 17 of Quiz- (Que-ID : 4657)

If ₹6,000 becomes ₹7,200 in 2 years at simple interest, what is the rate of interest?

  • 10%
  • 12%
  • 15%
  • 20%

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Q. 19 of Quiz- (Que-ID : 3387)

Which of the following steps is taken by the Ministry of Environment and Forests to protect rivers from water pollition ?

  • Ganga Action Plan
  • Narmada Action Plan
  • Yamuna Action Plan
  • Both (a) and (c)

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Q. 15 of Quiz- (Que-ID : 965)

The largest postal network in the world is in which country?

  • U.S A.
  • China
  • India
  • Brazil

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Q. 1 of Quiz- (Que-ID : 3469)

Best soil for plant growth is:

  • Grit
  • Sandy
  • Soily
  • Clay

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Q. 7 of Quiz- (Que-ID : 3375)

Biofertilisers are the living organisms which

  • bring about soil nutrient enrichment
  • maximise the ecological benefits
  • minimise the environmental hazards
  • all of these

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Q. 9 of Quiz- (Que-ID : 1718)

The science dealing with the fossil plants-

  • Palaeobotany
  • Geology
  • Epistemology
  • Entomology

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Q. 2 of Quiz- (Que-ID : 3170)

Which of the following is absent in female frog?

  • Webbed feet
  • Copulatory pads
  • Tympanum
  • All are present

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Q. 7 of Quiz- (Que-ID : 78)

White phosphorous is generally kept under-

  • Alcohol
  • Water
  • glycerine
  • ether

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Q. 14 of Quiz- (Que-ID : 2957)

In E. colt, the lac operon gets switched on when

  • lactose is present and it binds to the repressor
  • repressor binds to operator
  • RNA polymerase binds to the operator
  • lactose is present and it binds to RNA polymerase.

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Q. 17 of Quiz- (Que-ID : 3535)

Common indicator organism of water pollution is

  • Lemna pancicostata
  • Eichhomia crassipes
  • Escherichia coli
  • Entamoeba histolytica

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Q. 10 of Quiz- (Que-ID : 3053)

Complete the reaction. _________ + O2 → CO2 + _______ + Energy

  • C6H12O6, 2H2O
  • C12H22O11, 6H2O
  • C6H12O6, 6H2O
  • C12H22O11, 11H2O

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Q. 34 of Quiz- (Que-ID : 984)

The seasonal movement of men with its animals in search of pastures is known as -

  • Pastoral farming
  • Shifting Cultivation
  • Nomadic herding
  • Trans humance

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Q. 23 of Quiz- (Que-ID : 2666)

Pneumotaxic centre is present in which region of brain

  • Medulla
  • Hypothalamus
  • Pons
  • None of the above

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Q. 7 of Quiz- (Que-ID : 3475)

Xerophyte Contains

  • Deep roots
  • Sunken stomata
  • Thick cuticle
  • All of these

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Q. 18 of Quiz- (Que-ID : 3086)

Which of the following process (C4 cycle) occurs in bundle sheath cells?

  • Regeneration
  • Fixation
  • Carboxylation
  • Decarboxylation

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Directions : (प्रश्न 1 से 5 ) दिए गए 4 विकल्पों में से मुहावरे का सही अर्थ छाँटिए।

Q. 1 of Quiz- (Que-ID : 991)

न सावन सूखा न भादों हरा -

  • सदैव प्रसन्न रहना
  • सदैव एक सी स्थिति में रहना
  • सदैव दु:खी रहना
  • सुख-दु:ख का भेद न जानना

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Q. 17 of Quiz- (Que-ID : 3560)

Which of these is not a Linear polymer?

  • Starch
  • Polyethelene
  • Nylons
  • Polysters

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Q. 19 of Quiz- (Que-ID : 3112)

Exanthema is due to deficiency of

  • B
  • Mo
  • Mn
  • Cu

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Q. 24 of Quiz- (Que-ID : 3042)

The major site for production of gibberellin is

  • Embryos
  • Roots
  • Young leaves
  • All of these

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Q. 7 of Quiz- (Que-ID : 957)

Which of the following is known as the morning star?

  • Saturn
  • Venus
  • Jupiter
  • Mars

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Q. 20 of Quiz- (Que-ID : 3113)

NPK denotes

  • Nitrogen, Protein, Kinetin
  • Nitrogen, Protein, Potassium
  • Nitrogen, Potassium, kinetin
  • Nitrogen, Phosphorus, Potassium

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Q. 17 of Quiz- (Que-ID : 2910)

spot the odd one out from the following structures with reference to the male reproductive system

  • Rate testis
  • Epididymis
  • Vasa efferentia
  • Isthmus

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Q. 5 of Quiz- (Que-ID : 2948)

Which of the following steps in transcription is catalysed by RNA polymerase ?

  • Initiation
  • Elongation
  • Termination
  • All of the above

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Q. 20 of Quiz- (Que-ID : 591)

Vinegar is also known as -

  • ethanoic acid
  • nitric acid
  • sulphuric acid
  • tartaric acid

Discuss View Answer

Q. 10 of Quiz- (Que-ID : 3228)

In which of the following plants stems do not store the food materia

  • potato
  • ginger
  • onion
  • colocasia

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Q. 1 of Quiz- (Que-ID : 3319)

A person with sickle cell anaemia is

  • more prone to malaria
  • more prone to typhoid
  • less prone to malaria
  • less prone to typhoid

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Q. 8 of Quiz- (Que-ID : 1585)

The biosynthesis of carbohydrates from simpler, non carbohydrate precursors is… . .

  • Gluconeogenesis
  • Glycogenolysis
  • Thermogenesis
  • Glycogenesis

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Q. 25 of Quiz- (Que-ID : 2693)

What condition occurs when not enough oxygen reaches heart muscle

  • High bp
  • Low bp
  • Angina
  • Heart failure

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Directions : Choose the correct base for compound interest

Q. 4 of Quiz- (Que-ID : 4662)

Compound interest is calculated on:

  • Principal only
  • Principal and accrued interest
  • Rate of interest
  • Time period only

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Q. 13 of Quiz- (Que-ID : 3231)

certain plants called as runners can be easily propagated. This is due to the fact

  • they are numerous in numbers
  • they store the ready food
  • they lie horizontally on the soil
  • they can produce adventitious roots quite readily at the nodes

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Q. 23 of Quiz- (Que-ID : 3291)

By which type of leaf is found in selaginella

  • Aligulate and microphyllous
  • Ligulate and megaphyllous
  • Ligulate and microphyllous
  • Aligulate and megaphyllous

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Q. 25 of Quiz- (Que-ID : 3418)

Transgenic plants are develop by

  • Introducing of foreign fenes
  • Clone and genetically modified genes
  • Genetic engineering
  • Purified genes

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Q. 45 of Quiz- (Que-ID : 616)

Hemoglobin is the protein inside red blood cells that carries 

  • Oxygen
  • Carbon dioxide
  • Nitrogen
  • Ozone

Discuss View Answer

Directions : DSSSB 2021 question

Q. 15 of Quiz- (Que-ID : 4663)

What is the compound interest on ₹10,000 at 5% per annum compounded yearly for 2 years?

  • ₹1,000
  • ₹1,025
  • ₹1,050
  • ₹1,100

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Q. 3 of Quiz- (Que-ID : 2671)

What is life span of RBC in days

  • 120
  • 110
  • 115
  • 125

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Q. 26 of Quiz- (Que-ID : 976)

Where is the Doldrums Belt located?

  • Near the poles
  • Near the tropic of cancer
  • Near the Equater
  • Near the Tropic of Capricorn

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