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ANSWER

Differenciate between egg layers and broiler

Posted by Abhi Chauhan 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Kavyanjali Agrawal 7 years, 6 months ago

Broilers are those birds or chicken who give you good quality of meat,they also give chicken but their meat is of more good quality where if we talk about egg layers it is clear from their name,their egg is of good quality.

ANSWER

What is the difference between boiling and boiling point?

Posted by Mohit Bansal 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Jagdish 7 years, 6 months ago

Boiling is a process while boiling point of an object is the temperature where it starts boiling.

ANSWER

D definition of Newton first law of motion

Posted by Himanshu Singh 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Harsh Varshney 7 years, 6 months ago

According to Newton 's first law of motion or inertia If any body is in rest it will remain in rest until or unless any external force applied to it If any body is in motion it will remain in motion until or unless any external force applied to it.

ANSWER

Find the value of accleration due to gravity on earth surface , Mass of earth = 6×10kg power of 24, Mass of radius = 6.4×10m power of 6.

Posted by Rohini Chaudhary (Desi Jaatni) 7 years, 6 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Define Archimedes principle and their relative density...???

Posted by Rohini Chaudhary (Desi Jaatni) 7 years, 6 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Whst is momentum

Posted by Vishal Chauhan 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Rohit Kumar 7 years, 6 months ago

The product of mass and velocity is known as momentum

ANSWER

Why it is difficult to cut with a sharp knife than a blunt knife??????

Posted by Rohini Chaudhary (Desi Jaatni) 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Rohit Kumar 7 years, 6 months ago

Sharp knife cuts die to its thin shape and difficult to cut with blunt knife die to its thicker shape

ANSWER

Define thurst and pressure?☺☺☺☺

Posted by Rohini Chaudhary (Desi Jaatni) 7 years, 6 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Write four differences betwen mass and weight...???

Posted by Rohini Chaudhary (Desi Jaatni) 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Tamu Tameem 7 years, 6 months ago

mass is a measurement of the amount of matter something contains weight is the mesarument of the pull of gravity an object

ANSWER

What is the value of universal gravitational constant????????

Posted by Rohini Chaudhary (Desi Jaatni) 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Tamu Tameem 7 years, 6 months ago

6.7 ×10power of -11 nm square kg - square

Rohit Kumar 7 years, 6 months ago

Value of G=F

ANSWER

What is speed of light

Posted by Rohit Kumar 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Jagdish 7 years, 6 months ago

2,99,792 Km/s or 29,97,92,458 m/s is the speed of light.

Ansh Agarwal 7 years, 6 months ago

It is 300000 kilometer per second

ANSWER

What is hybridisation from biology

Posted by Divyani Dalal 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 7 years, 6 months ago

Hybridization is the crossing of dissimilar individuals to produce best of both organisms. It might be of interbreeding between individuals of different species (interspecific hybridization) or genetically divergent individuals from the same species (intraspecific hybridization). One advantage of hybridization is that it can combine disease resistance of one organism with the production capacity of another.

ANSWER

A gas fills completely the vessel in which it is kept

Posted by Arham Khan 5 years, 11 months ago

CBSE > Class 09 > Science

3 answers

Ansh Agarwal 7 years, 6 months ago

A gas fills the vessel completely in which it. Is kept as there is very less force of attraction between their particles and so the particles moves freely and cover the whole are inside the vessel

Arham Khan 5 years, 11 months ago

Please say me answer

Bittu Singh Hk 7 years, 6 months ago

Which are protection and forest

ANSWER

What are antigens?

Posted by Parth Bansal 7 years, 6 months ago

CBSE > Class 09 > Science

4 answers

Parth Bansal 7 years, 5 months ago

Mradul pehle padhle le aur phir bhauk

Parth Bansal 7 years, 5 months ago

Thnx Yogita

Yogita Ingle 7 years, 6 months ago

Antigens are substances that stimulate the immune system to produce antibodies. Each antigen has a distinct surface feature or epitope. Thus there is a resultant effect of a specific response. Antigens could be anything like a pathogen or bacteria or fungi or even virus. They cause diseases or allergic reactions.

Mradul Dixit 7 years, 6 months ago

Firstly this is integer kk

ANSWER

Why the particles of sand can not dissolve in water

Posted by Shantanu Singh 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 7 years, 6 months ago

Sand is mostly silicon dioxide. This has a giant covalent structure so to dissolve the sand, strong covalent bonds must be broken. Water can only separate polar particles, and SiO₂ isn't polar, so water just doesn't have the energy to break all those bonds.

ANSWER

The water get evaporated from lakes and rivers .their is a shortage of water. But when the rain come the floods come their. Now their is no shortage of water in lakes and rivers.

Posted by Daman Kaur 7 years, 6 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

The water get evaporated from lakes, rivers their is a shortage of water but when the rain come the floods come their is no shortage of water in lakes etc why

Posted by Daman Kaur 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Ansh Agarwal 7 years, 6 months ago

BECAUSE SOMETIME THAT WATER BY EVAPORATION MOVE FOR ONE PLACE TO ANOTHER SO SOMETIME THAT WATER IS SUPPLIED TO OCEANS AND SEA'S SO THE LEVEL OF OCEANS RISES AND FLOOD COMES IN THE AREAS WHICH ARE NEAR THE OCEANS OR SEA'S

ANSWER

Describe cell theory.

Posted by Ishani Hasija 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Arya Mishra 7 years, 6 months ago

And the cell theory described by two german scientist schluden and schwan

4Thank You

Arya Mishra 7 years, 6 months ago

Cell were discovered in 1665 by an english man name Robert hook . He observed thin slices of vork under the microscope.

4Thank You

ANSWER

SA 1 science score is 19 about of 80 and Sanskrit marks is 67 when I'm pass in science

Posted by Bunty Kumar 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Naruto Uzumaki??? 7 years, 6 months ago

Learn if you want to pass in science

Bittu Singh Hk 7 years, 6 months ago

Computer is electrion manchi

ANSWER

What are the causes of AIDs ?

Posted by Mrinal Anand 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 7 years, 6 months ago

AIDS stands for Acquired Immune Deficiency Syndrome and is caused by a virus called HIV (Human Immunodeficiency virus). AIDS is the final stage of the infection caused by the HIV virus. This virus mainly effects or damages the immune system of a person (the system which fights against diseases).

ANSWER

Why lysosome know as sucide bags

Posted by Krish Mehta 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Yogita Ingle 7 years, 6 months ago

Lysosomes are cellular organelles that contain digestive enzymes that break down waste materials, foreign material and cellular debris. Lysosomes are capable of digesting nucleic acid, polysaccharides, fats, and proteins. Along with them lysosomes also digest or damage its own cells by its own enzymes, which lead to cell death. This process is called as autolysis. Hence lysosomes are also called as suicide bags.

Divyansh Chauhan 7 years, 6 months ago

when the cell get damage lysosomes may burst or digest their own enzymes.therefore it is called suicide bag

ANSWER

How can I Prepare for half yearly examination of numerical of chapters motion force and law's of motion and gravitation please tell me

Posted by Sapna Kumari 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Swati Dhull 7 years, 6 months ago

Mention your school name

Swati Dhull 7 years, 6 months ago

Revise the concept and overview the formula

ANSWER

Define the universal law of gravitation??????????

Posted by Rohini Chaudhary (Desi Jaatni) 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 7 years, 6 months ago

Universal Law of gravitation was formulated by Sit Issac Newton.
It states that
Every body in universe attracts every other body with a force which is directly proportional to the product of their masses and inversely proportional to the square of distance between them. The force acts along the line joining the two bodies

ANSWER

What is the second law of motion ?

Posted by Shatakshi Roy 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 7 years, 6 months ago

Newton's second law of motion gives the relationship between the force and acceleration.
The second law of motion states that the rate of change of momentum of an object is proportional to the applied unbalanced force in the direction of force.
The rate of change of momentum of an object is proportional to the applied force. So, Newton's second law of motion can be expressed as definition of force
Force ∝ change in momentum / total time

ANSWER

Why human blood is red in colour?

Posted by Harshita Shekhawat 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Djsj Djekek 7 years, 6 months ago

due to presence of haemonglobin

Yogita Ingle 7 years, 6 months ago

The presence of haemoglobin, a red pigment in the red blood cells (RBCs) makes blood appear red in colour. The haemoglobin carries oxygen and transports it to all the parts of the body.

ANSWER

Write the differences between parenchyma, collenchyma, sclerenchyma.

Posted by Rohit Mathad 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 7 years, 6 months ago

Parenchyma	Collenchyma	Sclerenchyma
It is made up of cells having very thin cell wall.	cells of collenchyma has unevenly thickened cell wall.	They are made up of cells having thick cell wall.
The cells are loosely packed.	Cells have little space between cells.	No intercellular spaces present between them, cells are tightly packed.
The cell wall is made up of cellulose.	The cell wall is made up of hemicelluloses and pectin.	The cell wall is made up lignin
It is found in abundant. Most of the plant tissues are made up of parenchyma cells.	Collenchymas cells make up the epidermal layers.	The outer woody stem portion of large trees is made up of sclerenchyma cells.
it constitutes living cells.	It also constitutes living cells.	Matured cells are dead.

ANSWER

Explain why some of the leaves may get detached from a tree if we vigorously shake its branch

Posted by Soyab Idrishi 7 years, 6 months ago

CBSE > Class 09 > Science

5 answers

Neha Panwar 7 years, 6 months ago

when we vigorously shake a branch of tree some of leaves may get detached and account of inertia of the rest of the leaves ,the branchb come in motion and the leaves be tried in the position of rest therefore they get detached.☺️

Ashif Ahmed 7 years, 6 months ago

Badshah

Rajkumar Yadav 7 years, 6 months ago

In the inital situation the tree and their leaves are in rest but when we vigourously shake its branch the tree and its branch comes in motion but the want to be in rest due to inertia of rest so weak leaves get detached from tree

Tahir Ali 7 years, 6 months ago

See it is because of inertia of leaves.otherwise this is the question of book.i know that

Ashif Ahmed 5 years, 11 months ago

Akbarabadi

ANSWER

Name the composition of kisankhad

Posted by Sahil Sagar 7 years, 6 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

What changes takes place in epidermis tissue as the plant grows older??

Posted by Saumya Sidhi 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Biswash Kumar 7 years, 6 months ago

As plants grow older the outer protective tissue undergoes certain changes. A strip of secondary meristem replaces the epidermis of the stem.cells on the outside are cut from this layer. This forms thye several layer thick cork or the bark of the tree