CBSE > Class 09 > Science | CBSE Board | Homework Help

Example of endosmosis :- To show endosmosis, take a full glaas of water and some almonds in it and see it tomorrow. The almonds will swell up. So,in this process there is a movement of water from high concentration to low concentration because water level is more. This is called endosmosis. Example of exosmosis :- To show exosmosis, take a bunch of grapes and put it out for a day and then see , grapes will shrink because of movement of water from high concentration to low concentration. This is called exosmosis.

1Thank You

ANSWER

Pulling a Tonga is an example of 3rd law of motion explain

Posted by Toufuque Raza 7 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Ashish Suraj 7 years, 1 month ago

Yes it is the nest example of thitd laws of motion because when we exerts force on tonga then tonga also act the same force on me for oppose my force .

1Thank You

ANSWER

Definition of decantation

Posted by Aditya Singh 7 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Amit Kumar 7 years, 1 month ago

Decantation is a process for the separation of mixtures of immiscible liquids or of a liquid and a solid mixture such as a suspension.

3Thank You

ANSWER

What do you mean be people as resources

Posted by Thapki❤️ Thapki❤️ 7 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Akanksha Kumari? 7 years, 1 month ago

People as resource is a way of referring to the people of the country who are an asset for the country. People who are educated, healthy and skilled are considered to be a resource for the country..

2Thank You

ANSWER

An object is thrown upward to a certain height with a velocity of 3m/s.If the time required to reach the height is 5 second. Calculate the height at which it was thrown. (Hint:g=10m/s)(use second equation of motion)

Posted by Abdul Rauf 7 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Akanksha Kumari? 7 years, 1 month ago

Ya it's right

2Thank You

Aditya Singh 7 years, 1 month ago

u=3m/s t=5s g=10meter per second sq. h=? h=ut+1/2gt sq. h=3×5+1/2×10×25 h=15+125 h=140m

4Thank You

ANSWER

What is state of water at 100•C and why

Posted by Saumya Agrawal 7 years, 1 month ago

CBSE > Class 09 > Science

3 answers

Aryan Sikhwal 7 years, 1 month ago

Gaseous state

1Thank You

Amit Kumar 7 years, 1 month ago

Can be water or gaseous because this is the boiling point where the liquid state of water takes latent heat to change into gaseous.

3Thank You

Akanksha Kumari? 7 years, 1 month ago

Gaseous because water heats up and began to evaporate at 100°C

3Thank You

ANSWER

What do you mean by tissue

Posted by Ansh Soni 7 years, 1 month ago

CBSE > Class 09 > Science

5 answers

Aryan Sikhwal 7 years, 1 month ago

All right akansha

0Thank You

Ananya Dewangan 7 years, 1 month ago

A group of cells that are similar in structure and work together to perform a specific function is called a tissue.

1Thank You

Lakshita Bookworm 7 years, 1 month ago

Tissue is a group of similar or unsimilar cells which work together to achieve a specific task.

0Thank You

Saurav Malik 7 years, 1 month ago

Yes

0Thank You

Akanksha Kumari? 7 years, 1 month ago

Tissue is a group of similar cells which contribute to perform a specific function.

4Thank You

ANSWER

What is human ear ?

Posted by Rohan Mahajan 7 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Aryan Sikhwal 7 years, 1 month ago

The listning process and the handling of the body is called human ear

0Thank You

Satyapal Yadav 7 years, 1 month ago

Listening process is called human ear.

0Thank You

ANSWER

What is vector quantity?

Posted by Thapki❤️ Thapki❤️ 7 years, 1 month ago

CBSE > Class 09 > Science

3 answers

Priya Chaudhary 7 years, 1 month ago

The quantity which has magnitude as well as direction.

1Thank You

Lakshita Bookworm 7 years, 1 month ago

And it can be 0, positive and negative For eg. Displacement , acceleration etc.

0Thank You

Akanksha Kumari? 7 years, 1 month ago

A physical quantity which has both magnitude and direction.

2Thank You

ANSWER

From where do we get our food

Posted by Suraj Mishra 7 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Lakshita Bookworm 7 years, 1 month ago

Agriculture and animal husbandary

0Thank You

Ravinder Sharma 7 years, 1 month ago

From agriculture and from animal

0Thank You

ANSWER

For which mu is used in pshysics

Posted by Craze Shields 7 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Chahat Dudeja 7 years, 1 month ago

mu is initial momentum of a body

0Thank You

ANSWER

Define osmosis give 2 examples of plant osmosis

Posted by Falguni Parikh 7 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Piyush Vishnani 7 years, 1 month ago

Osmosis is a process of movement of only solvent from a region of higher concentration to a region of lower concentration through semipermiable membrane .

2Thank You

Ashish Suraj 7 years, 1 month ago

Osmosis is a process in which the material are flows higher concentration to lower concentration.

1Thank You

ANSWER

What is mean of motion

Posted by Prashant Sharma 7 years, 1 month ago

CBSE > Class 09 > Science

3 answers

Abdul Rauf 7 years, 1 month ago

In physics, motion is a change in position of an object over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, time, and speed. ... One can also speak of motion of shapes and boundaries.

1Thank You

Akanksha Kumari? 7 years, 1 month ago

A body is said to be in motion if it changes it's position with respect to time

2Thank You

Craze Shields 7 years, 1 month ago

When an object changes its position with respect to its surroundings it is called motion

1Thank You

ANSWER

What is symptoms? ??

Posted by Ashish Suraj 7 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Akanksha Kumari? 7 years, 1 month ago

Symptoms are something which we consider as wrong. They are the signs of a particular disease.

1Thank You

ANSWER

What is chloroplast???

Posted by Ashish Suraj 7 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Kumkum Sarswat 7 years, 1 month ago

Plastids containing the pigment chlorophyll are known as chloroplasts. They are important for photosynthesis in plants. ???????

1Thank You

ANSWER

What is the basic principle of vaccination

Posted by Muskan Kushwaha 7 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Kumkum Sarswat 7 years, 1 month ago

When the immune system first sees an infectious microbe it responds against it and then remembers it specifically. So the next time that particular microbe or its close relatives enter the body the immune system responds with even greater vigour. This eliminates the infection even more quickly than the first time around. This is the basis of the principle of immunisation. ????????

0Thank You

Nandana Muthu 7 years, 1 month ago

Refer the last page of the chapter WHY DO WE FALL ILL?Class 9 CBSE NCERT text book

0Thank You

ANSWER

I love you so much

Posted by .Yogitha . Dhanaji 7 years, 1 month ago

CBSE > Class 09 > Science

0 answers

ANSWER

A person whose mass is 70 kg climb from a hill station A to another hill station B .If A is 1200m above sea level and B is 1900m above sea level Find the work done by him in going from A to B.

Posted by Fiza Hussain 7 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Ram Kushwah 7 years, 1 month ago

Work done= mgh

=70 x 10x(1900-1200)

=70 x10x700

=490000 J =490 KJ

1Thank You

ANSWER

A 5J of work is done in lifting a body of 200kg , how height will it rise. Where g=10m/s^2

Posted by Fiza Hussain 7 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Ram Kushwah 7 years, 1 month ago

{tex}\begin{array}{l}\mathrm w=\mathrm{mgh}\\5=\;200\times10\times\mathrm h\\\mathrm h=\frac5{200\times10}\;\mathrm m\\=\frac{5\times100}{2000}=\frac5{20}=0.25\;\mathrm{cm}\end{array}{/tex}

0Thank You

ANSWER

If a body moves with a constant velocity of 2m/s due to an applied force of 10N . Find it 's power

Posted by Fiza Hussain 7 years, 1 month ago

CBSE > Class 09 > Science

0 answers

ANSWER

Hi.can you send me all the derivations of lsn motion by graphical method pls. Thank you

Posted by Sri Vardhan Jandhyala 7 years, 1 month ago

CBSE > Class 09 > Science

0 answers

ANSWER

What is membrane boigensis

Posted by Akanksha Thakur 7 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Kumkum Sarswat 7 years, 1 month ago

Proteins and lipids help in building the cell membrane. This process is known as membrane biogenesis. ????????

0Thank You

Nandana Muthu 7 years, 1 month ago

Refer CELL THE FUNDAMENTAL UNIT OF LIFE chapter class 9 CBSE NCERT text book under the heading ENDOPLASMIC RETICULUM

0Thank You

ANSWER

If the Z =3, What would be the valency of the element? Also name the element

Posted by Ravi Meena 7 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Sahil Nandode 7 years, 1 month ago

As the atomic number is 3 it is lithium so as it is easier to give away 1 electron it's valency would be 1

3Thank You

ANSWER

Temperature when both ice and water exist in beaker

Posted by Vaishali Sangole 7 years, 1 month ago

CBSE > Class 09 > Science

3 answers

Kumkum Sarswat 7 years, 1 month ago

0 degree Celsius ????????

0Thank You

Mansirat Brar 7 years, 1 month ago

Room temperature

0Thank You

Mansirat Brar 7 years, 1 month ago

0°c

1Thank You

ANSWER

The one who is reading this,Yes U . Who is your Role Model??. Give answer if u want to be a success ful man

Posted by Amidhi Jain 7 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Akanksha Kumari? 7 years, 1 month ago

In spite of knowing about others role model develop a personality that can become an ideal role model for others. ☺?

2Thank You

Ayush Rishank 7 years, 1 month ago

Lord Shiva

0Thank You

ANSWER

What is bohrs atomic theory

Posted by Ayushi Tiwari 7 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Amidhi Jain 7 years, 1 month ago

In 1913, Niels Bohr proposed a theory for the hydrogen atom based on quantum theory that energy is transferred only in certain well defined quantities. Electrons should move around the nucleus but only in prescribed orbits. When jumping from one orbit to another with lower energy, a light quantum is emitted. HOPE IT WILL HELP U?

2Thank You

ANSWER

Is chromosomes is present in nucleus and in chromosomes dna is present

Posted by Toshi Singh 7 years, 1 month ago

CBSE > Class 09 > Science