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Why do we fish and frogs lay eggs in hundred whereas a hen lays only one egg at a time

Posted by Zaheer Ahmed Zaheer Ahmed 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Sourav Kumar 6 years, 1 month ago

Fish lay hundred egg because some of them are eaten by aquatic animals and some are hatched

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ANSWER

Two laws of reflection

Posted by Aniket Das 6 years, 1 month ago

CBSE > Class 08 > Science

3 answers

Shambhavi Kumari 6 years, 1 month ago

The following are the laws of reflection - 1)The angle of incidence is always equal to the angle of reflection. 2)The incident ray,the reflected ray and the normal at the point of incidence all lie on the same plane.

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Nandini. K. Rajanal 6 years, 1 month ago

1) according to the first law of reflection the angle of reflection is always equal to angle of incidence. 2)according to the second law of reflection incident ray, reflected ray and normal lie on the same line.

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Richa Sinha 6 years, 1 month ago

The two laws of reflections are _1) angle of incidence and angle of reflection is always same. 2) incident ray ,normal ray and reflected ray all lie on the same plane .

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What is COC

Posted by Sumit Kumar### 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Gouri Malani 6 years, 1 month ago

Clash of clans

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Why do fish and frog lay eggs in hundreds whereas a hen lays one egg at a time

Posted by Adhi Kesvalu Megu 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Richa Sinha 6 years, 1 month ago

The fish and frog lay eggs in hundreds and millions of sperm because all the eggs do not get fertilized and developd into an new individuals. This is because the eggs and sperms get exposed to water movement , wind rainfall also , there are other animals in the pond which may feed on eggs . Thus production of large number of eggs and sperm is necessary to ensure fertilisation of at least at a few of them.??

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What is menstruations?

Posted by Arjun Kumar 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Maria Aradan 6 years, 1 month ago

if fertiliation does not occure in female the released egg and the thickened lining of the uterus along with its blood vessels are shed of this cause bleeding in female which is called mensuration

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Sukshm Jeev Kise Kahate Hain

Posted by Deepak Vishwakarma 6 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Aditya Narayan Singh 6 years, 1 month ago

Microorganisms

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Richa Sinha 6 years, 1 month ago

Microorganisms is a very small organisms which we can't see to our Naked eyes we can see these organisms only with the help of microscope for example bacteria,fungi,algae, protozoa, viruses etc.

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Defination of asexual reproduction

Posted by Geeta Maan 6 years, 1 month ago

CBSE > Class 08 > Science

3 answers

Richa Sinha 6 years, 1 month ago

A sexual reproduction is a type of reproduction in which only one female parent is involved and in this reproduction the offspring is the exact copy of her/his parent. For example hydra ,amoeba

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Maria Aradan 6 years, 1 month ago

The type of reproduction in which only a single parent is involved is called a sexual reproduction

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Aviroop Ghosh 6 years, 1 month ago

A type of reproduction where single parent is involved to produce off Springs are known as asexual reproduction

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Please give the science final question paper!

Posted by Jayati Thukral 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Madhu Gupta 6 years, 1 month ago

Exam wale din mil jayega

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ANSWER

Difference between ursa major and utsa minor

Posted by Bhavya Mehandiratta 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Anshumaan Mishra 6 years, 1 month ago

Hame saptrishi ko. urasa majour bataya jata hai jabki wo ursa minor hai

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ANSWER

Please let me know about the syllabus of final exams

Posted by Himanshu Mehra 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Jayati Thukral 6 years, 1 month ago

Well, it depends from school to school. Like in our school the whole book, except chapters 5 and 7, is coming.

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Please give me science paper final question paper

Posted by Umesh Bisht 6 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Mayankkumar Sahoo 6 years, 1 month ago

Ok I will give you

3Thank You

George Washington 5 years, 11 months ago

I.d. k

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What is difference between meteoroids, meteors and meteorites?

Posted by Ramish Sadaf 6 years, 1 month ago

CBSE > Class 08 > Science

4 answers

Maria Aradan 6 years, 1 month ago

Meteorites: some meteors are so large that a part of them reaches the surface of the earth before they evaporate completely .these are called meteorites

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Maria Aradan 6 years, 1 month ago

meteors: a meteor is usually a small heavenly object moving around the sun. when meteor occasionally enters the earth's atmosphere, it gets heated up because of friction and glows but evaporates in a very short period of time. that is why ,they appear as a bright streak in the sky .

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Jayati Thukral 6 years, 1 month ago

Meteors - A shooting star; when a meteoroid enters the Earth's atmosphere and vaporizes. Meteoroids - A small particle from a comet or asteroid orbiting the Sun. Meteorites - When a meteor survives the Earth's atmosphere and lands up on the Earth's surface.

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Bipul Haloo 6 years, 1 month ago

Lul,lulli, Lund

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ANSWER

Which is biggest star

Posted by Rathna ರತ್ನ 6 years, 1 month ago

CBSE > Class 08 > Science

9 answers

Krishna Chauhan 6 years, 1 month ago

Vy canis majoris

1Thank You

Vinayak Singh 6 years, 1 month ago

UV sceuti

1Thank You

Gaurav Singh 6 years, 1 month ago

Pole star

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Sana Khan 6 years, 1 month ago

Sun is also a star

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Anshumaan Mishra 6 years, 1 month ago

Let the star be x

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Harnam Singh Dangi 6 years, 1 month ago

Jupiter

1Thank You

Sriya? Ghosh 6 years, 1 month ago

vy canis majoris

1Thank You

Sarah Singh 6 years, 1 month ago

It's actually not discovered yet

1Thank You

Rishabh Yadav 6 years, 1 month ago

Pole star

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Which phenomena of light is used in making of kaleidoscope?

Posted by Siddhi Tupe 6 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Shambhavi Kumari 6 years, 1 month ago

Multiple Image Formation

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Monika Hada 6 years, 1 month ago

Dispersion

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Explain about comets ,meteors ,natural satelites, asteroids and about all planets in solar system

Posted by Lija Gigi 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 6 years, 1 month ago

The solar system is made up of the sun and everything that orbits around it, including planets, moons, asteroids, comets and meteoroids.

The term meteor is used to describe the streak of light produced as matter in the Solar System falls into Earth's atmosphere creating temporary incandescence resulting from atmospheric friction.

A meteoroid is matter revolving around the sun or any object in interplanetary space that is too small to be called an asteroid or a comet. Even smaller particles are called micrometeoroids or cosmic dust grains, which includes any interstellar material that should happen to enter our solar system.

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What is in clonning

Posted by Lija Gigi 6 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Varsha Garg 6 years, 1 month ago

Clonning is creating an identical copy of an organism by copying it's genetic material

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Sarah Singh 6 years, 1 month ago

Clonning is making a same copy of an organism by putting nucleas of the organism we want to clone in the egg of another mother . So, its consequences will be that the organism reproduced will be the same copy as that of the organism whose nucleas we have taken

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ANSWER

What is air pollution ? Write its causes and problem faced by us . How can we control it

Posted by Paresh Khamari 6 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Maria Aradan 6 years, 1 month ago

When the air is contaminated by unwanted substances which have a harmful effect on both the living and nonliving components it is referred to as air pollution.

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Kumar Aaditya 6 years, 1 month ago

Air pollution is a mixture of unwanted substance or pollutants. It can cause cancer, skin problems and high BP etc. We can control it by reducing vechiles using LPG and CNG gases. We can also make some rules on it.

2Thank You

ANSWER

Write the name of two sexsually reproduction in animal

Posted by Ramesj Saroj 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 6 years, 1 month ago

Dogs and human beings are sexually reproducing animals.

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In which part of the sky can u find venus if it is visible as an evening star

Posted by Navika Maheshwari 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Shreyanshu Singh 6 years, 1 month ago

Sometimes,venus appears in the western sky just after sunset.

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Which has the highest ignition temperature

Posted by Dhanush S 6 years, 1 month ago

CBSE > Class 08 > Science

5 answers

Krishna Chauhan 6 years, 1 month ago

Its coal only 600degree Celsius

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Sriya? Ghosh 6 years, 1 month ago

Its coal

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Ujjaini Patil 6 years, 1 month ago

Coal

2Thank You

Imtiyaz Ahmad 6 years, 1 month ago

PETROL

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Sailesh Kumar 6 years, 1 month ago

I think diamond

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What is the function of galvanometer

Posted by Shreya Shukla 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 6 years, 1 month ago

Galvanometer is an instrument for measuring a small electrical current or a function of the current by deflection of a moving coil.

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What is planck's constant?

Posted by Utkarsh K 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 6 years, 1 month ago

The Planck constant, or Planck's constant, denoted as h, is a physical constant that is the quantum of electromagnetic action, which relates the energy carried by a photon to its frequency.

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What is the coldeat flame in candle

Posted by Aman Gahlot 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 6 years, 1 month ago

Innermost zone: The innermost zone of a flame is dark or black. It consists of hot, unburnt vapours of the combustible material (candle). It is the least hot part of the flame.

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What is pesticides

Posted by Krishana Tyagi 6 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Prabhat Kumar 6 years, 1 month ago

Pesticides is a type of special Chemical which kill the pests without effecting crop plant.

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Moorthy.C.N Moorthy.C.N 6 years, 1 month ago

Pesticides are substances meant to control pests,including weeds.?

1Thank You

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Which non-metal is nither a gas nor a solid at room temperature?

Posted by Harsh Goyal 6 years, 1 month ago

CBSE > Class 08 > Science

4 answers

Gundubogula Srujana 6 years, 1 month ago

Bromine.

1Thank You

Sarah Singh 6 years, 1 month ago

Water maybe but absolutely not murcery as it is a metal

1Thank You

Sailesh Kumar 6 years, 1 month ago

Bromin

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Krishana Tyagi 6 years, 1 month ago

Mercury

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Pure air and polluted air

Posted by Nandkishore M 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 6 years ago

Pure air is free from harmful pollutants whereas polluted air contains harmful impurities called pollutants.

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Mohan while seated on the back bench ,is not able to read the text written on the blackboard clearly Name the defect of vision from which he is suffering

Posted by Pranav Malhotra 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Sailesh Kumar 6 years, 1 month ago

Myopia

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If you are caught in a thunderstorm accompanied by lightning while crossing an open field, do you think it is right if you lie flat on the ground, that is face downwards ? Justify your answer.

Posted by Manju Gupta 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 6 years, 1 month ago

If a person is in open space when thunder and lightning begin, and there is no suitable shelter nearby, then the following precautions should be taken:

Stay away from poles or other metal objects.
Never stand under a tree to take shelter during a thunderstorm because there is danger of lightning striking the tree and burning it up.
Never lie down on the ground, instead, squat low on the ground. The person should place his hands on the knees with his head between the hands as this position will make him the smallest target to be struck

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What is sirus? Related to stars and solar system

Posted by Kumar Aaditya 6 years, 1 month ago

CBSE > Class 08 > Science