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42251.

Defination of execreation

Answer» The removal of waste or toxic substance sfrom our body is called excretion.
Excretion is the process by which metabolic wastes and other non-useful materials, such as faeces, are eliminated from an organism
42252.

Why is stars twinkle?

Answer» Due to continuous change in atmospheric numerous layers & refractive index, stars twinkle
I think due to atmospheric layers
Because of the variable atmospheric refraction . It causes a variable amount of light source to enter the eye of observer which leads to a continuous dim -bright condition causing twinkling.
Due to their apparent position
42253.

Most important question in chapter 12

Answer» All are important.
What question.
42254.

What is cleansing agent

Answer» If consulting with biology
Ones who cleans atmosphere ie decomposers
Substance used to remove stain or dirt
Cleansing agent means the agent which cleanses the waste
42255.

The mechanism by which variation are created and inherited

Answer» Evolution & Heredity
42256.

Give two examples of std

Answer» AIDS, SYPHILLIS, GONORRHEA
42257.

What is neutrilisation reaction

Answer» A..reaction.in.which,,,acid.reacts.with.base.to.form.salt.and.water.,..........is.known.as.neutralization.reaction
When acid react with Base that reaction is known as neutralisation reaction.
When acid react with base to neutral or normal is called neutralize reaction
Neutralization reaction is a chemical reaction in which acid and bases react to quantitative with each other
42258.

3 Function of ciliary muscle

Answer» 1-they help accomodate focal length.2-they hold eye lens3-they are a junction for suspension ligament and lens.
Ciliary muscles makes the eye lens thin or thickThey hold suspensory ligaments
42259.

What is the difference between size of atom and electron

Answer»
42260.

how many 76ohm resistors in parallel are required to carry 5A on a220V

Answer»
42261.

draw the circuit diagram of the two cases

Answer» Hloooo what are the two cases here
answer
42262.

What is AC AND DC

Answer» Dc means direct current
Ac means alternative current
42263.

How does rainbow formed? Draw ray diagram

Answer»
42264.

Sponification reaction

Answer» Ch3cooh+c2h5oh-ch3cooc2h5+h2o
Alkaline hydrolysis of ester is called saponification reaction
42265.

If atomic no is known then how can we find that in which period it falls

Answer» If we know the atomic number then write its electronic configuration and then count the number of shells in the configuration.....the number of shells is the period numberFor eg. Cl.......2,8,7Total shells are 3So it will lie in13th group
42266.

Two salts that are used in photography

Answer» Silver chloride and silver bromide
Silver chloride and siver bromide
42267.

What is the formula of clay

Answer» Basically, clay is an alumina silicate
Al203 2SIO2 2H2O
Found in the form.if Kaolinite
It is not found in.natural state
Al2O3.2SiO2.2H2O
Al2O3 2SiO2 2H2O
42268.

What is rainbow?howis a rainbow formed in the sky

Answer» A rainbow is a meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky. It takes the form of a multicoloured circular arc. Rainbows caused by sunlight always appear in the section of sky directly opposite the sun.
A rainbow is a multicolored arc, or curved line, in the sky. Most rainbows form when the sun’s rays strike raindrops falling from faraway rain clouds. Rainbows appear in the part of the sky opposite the sun, usually in the early morning or late afternoon
42269.

How are you guys

Answer» Fine
fine and u
Bahut badiya.......
42270.

How lymph is form

Answer» Lymph is the fluid that circulates throughout the lymphatic system. the lymph is formed when the interstitial fluid is collected through lymph capillaries
From interstitial fluid.
From blood
42271.

How many structural isomers are possible for hexane

Answer» 5 structural are possible
5
42272.

Can we store copper sulphate in iron container yse or no why

Answer» Nope bcz iron will displace copper from its solution causing hole in the container
No because copper sulphate reacts with iron
42273.

What is the atomic number of carbon dioxide

Answer» 4
4
4.
42274.

What is Archaeopteryx?

Answer» it was a dinasour fossil which was linked with birds and reptiles
Is it a combination of reptiles and birds
Ohh thanks
the oldest known fossil bird. It had feathers, wings, and hollow bones like a bird, but teeth, a bony tail .
A bird like dianasour
42275.

Who was the first cricketer of india who scrore hundred

Answer» Lala amarnath
No idea
42276.

What is Archaeopteryx ?

Answer» Mine
Which answer is correct?
Archaeopteryx is a bird that has sparked quite a bit of debate ever since its fossils were discovered in Germany in the mid-19th century.
Angry bird
Ancient bird but now extint
Nope it was a trans relation between a burd and a reptile
It was a bird
42277.

Can u plzz tell me what is mean by micelle

Answer» Micelles- it is formed by molecule of soap when dissolved in water
Soap molecule forms a structure called micells
U can get the ans from T.B.......
Formed when soap or detergent dissolves in water
42278.

I am leaving this app.Bye

Answer» Why
42279.

What is blue vitriol

Answer» Copper sulphate
Cuso4
42280.

Why solar energy stored in a battery for a shorter period of time

Answer» Hlo
hii Mr.keshav
Ha
Jab sun na nikle toh bhi use ke liye
Bro for night use
42281.

llma mai tukalkabad m rhta hu

Answer» Hii Mr.yash
Ilma hii
aap ka mtlb h TUGLAKABAD
llma hum whatspp pe baat kara
oh achcha mene is jgah k naam to sunah h Mr.rishab
42282.

what is the color of rock salt

Answer» Reddish brown
Black or brown.
42283.

What is sigma and pi bond?

Answer» No idea
42284.

What is fossil dating?

Answer» Study about fossil how long it was
42285.

Advantage of A. C over D. C?

Answer»
42286.

Artificial mode of vegetative propagation

Answer»
42287.

Hello all

Answer» Ok
Last me e nahin hai name me
Puggie???
Hii
How r u??
hiii pragya
Hi puggie
42288.

Why doesn\'t react barium sulphate to sodium chloride

Answer»
42289.

What is saponification and Ester fication

Answer» Saponifucation is hydrolysis of ester whereas estrification is the reaction beyween ethanol and acegic acid to form ester
42290.

What is chamical

Answer»
42291.

What is amphoteric oxide?

Answer» The oxides which react with both acids as well as bases are referred to as amphoteric oxides.Such as, Zinc oxode and Aluminium oxide.
Cupper ka reaction do ?
An amphoteric compound is a molecule or ion that can react both as an acid as a base. Many metals (such as zinc,copper ) form amphoteric oxides or hydroxides
Those oxides that react with both acids and bases
42292.

What is versatile nature of carbon

Answer» Catination :- carbon has property of forming bonds with other carbon atom to form long chain Tetravelent :- carbon is capable of combining with four other atom of carbon or atom of other monovelent elements.
Carbon can for double triple bond with atoms
42293.

Name any two wastes which can be recycle or reused

Answer» Shristi aap khase ho?? aur aap ne kuch kiya mere problem ka??
Thanku
Scraps
Metals scra0s and glass
42294.

Regards

Answer»
42295.

What is succus entericus?

Answer» The intestinal juice js known as succusentericus
42296.

Account the following "elements of group 17 are monovalent

Answer» Group17*
They r highly electronegative
Elements if group 12 r nonmetaks
42297.

Name the two components of peripheral nervous system

Answer» Somatic nervous system and autonomic nervous system are the two components of the peripheral system
42298.

What is the difference bw trypsin and pepsin

Answer» Lypase hlps in digest imulsified fat that is fatty acids or glycerol... And trypsin helps in digestion of proteins To peptons
Yeah it is right answer of difference
No difference they both digest proteins
Pepsin produce in stomach on the other hand trypsin produce by pancreas. Pepsin acts in acidic medium on the other hand trypsin act in basic medium.
42299.

What is autosomes

Answer»
42300.

What is the physical properties of NaCl ?

Answer» Physical property of NaCl is solid