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

Evaporation causes cooling because the process require heat energy. the energy is taken away by the molecules when they convert from liquid into gas ,and this causes cooling on the original surface

0Thank You

Sanket ... 3 years, 10 months ago

Bhul nhi gya bro iska answer to bta do ?

0Thank You

Piyush ❤️ 3 years, 10 months ago

Hii bhaii sanket yr ap to mujhe bhul he gya

3Thank You

Sanket ... 3 years, 10 months ago

Mujhe lgta tha heat ki vajah se hota hai ???

1Thank You

ANSWER

Enlist the causes of infection diseases

Posted by Samiksha Singh 3 years, 10 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

If the tip of sugarcane plant is removed from the field even it keeps on growing in length It is due to the presence of

Posted by Anindita Sinha 3 years, 10 months ago

CBSE > Class 09 > Science

3 answers

Shashank Kushwaha 3 years, 10 months ago

Intercalary meristems Because Intercalary meristems can be found in the base of nodes and leaf blades of stems. ... Sugarcane is a monocot plant with nodes that have intercalary meristems. As a result, even if the sugarcane's tip is cut, it can still grow because of the intercalary meristem found at nodes.

1Thank You

Banshika Thakur 3 years, 10 months ago

Apical meristmatic

1Thank You

Krissh Sharma 3 years, 10 months ago

Velocity

0Thank You

ANSWER

What name is given to these atoms ¹⁶O, ¹⁷O, ¹⁸O

Posted by Kushal Omar 3 years, 9 months ago

CBSE > Class 09 > Science

2 answers

Sia ? 3 years, 9 months ago

Isotopes are two or more types of atoms that have the same atomic number (number of protons in their nuclei) and position in the periodic table (and hence belong to the same chemical element), and that differ in nucleon numbers (mass numbers) due to different numbers of neutrons in their nuclei.

0Thank You

Kushal Omar 3 years, 8 months ago

Not fully correct

0Thank You

ANSWER

Deference between kharif crops and rabi crops

Posted by Preet Kaur 3 years, 10 months ago

CBSE > Class 09 > Science

3 answers

Shashank Kushwaha 3 years, 10 months ago

Kharif crop These crops are usually sown at the beginning of the monsoon season around June and harvested by September or October. Rice, maize, bajra, ragi, soybean, groundnut, cotton are all types of Kharif crops. Rabi crop Crops that are grown in the winter season, from November to April are called Rabi Crops. Some of the important rabi crops are wheat, barley, peas, gram and mustard.

0Thank You

Thakur Deepali Singh 3 years, 10 months ago

Where found tissue

0Thank You

Shubham Prasad 3 years, 10 months ago

Kharif crops are the crops which are sown at the beginning of the rainy season, e.g. between April and May. Rabi crops are the crops that are sown at the end of monsoon or at the beginning of winter season, e.g. between September and October. ... Major Rabi crops are wheat, gram, peas, barley etc.

1Thank You

ANSWER

What will be the momentum if stone heavy mass of 10kg When it is thrown with a velocity 2m/s².

Posted by Manish Kumar 3 years, 10 months ago

CBSE > Class 09 > Science

3 answers

Jaiditya Sinha 3 years, 10 months ago

How is velocity in m/s²

0Thank You

Param Sidhu 3 years, 10 months ago

Mometum(p)=mass (m)*velocity (v) Given (m)=10kg,,,,,,,,(v)=2m/s² Therefore momentum =2*10☞20kg ms-¹

2Thank You

Tanishka Panchal 3 years, 10 months ago

P=m×v =10×2. =20(kg. m/s)

2Thank You

ANSWER

Uttak kya hai

Posted by Akash Kumar 3 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Archana Yadav 3 years, 10 months ago

Cluster of cells is call tissue

0Thank You

ANSWER

Pysices

Posted by Muskan Poriyal 3 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Sanket ... 3 years, 10 months ago

Motion , force and laws of motion , work and energy and last one is sound .

0Thank You

ANSWER

Why a dead body floats, with it's head immersed in water ?

Posted by Sahitya Rathore 3 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Akash Kumar 3 years, 10 months ago

Uttak kya hai

0Thank You

ANSWER

On immersing an iron nail in CuSO4 solution for few minutes, you will observe

Posted by Your Life 3 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Sejwal Rupnawar 3 years, 10 months ago

Send

0Thank You

ANSWER

Blood is the river of life justify the statement

Posted by Abhishek Raj 3 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Jaiditya Sinha 3 years, 10 months ago

Red blood cells or RBCs play an important role by carrying oxygen throughout the body. The RBCs lacks nucleus and most organelles but they carries nutrients and the haemoglobin protein that make the blood red and carry oxygen. It is called as the red river of life as the red colour is due to the presence of haemoglobin that makes the blood red, it flows or circulates in the form of liquid in our body in same way like a river flows and known as life because blood carries oxygen which is required for breathing or survival,without oxygen a person would die.

0Thank You

ANSWER

*** hormones kya hota in hindi

Posted by Ranjan Bhagat 3 years, 10 months ago

CBSE > Class 09 > Science

2 answers

Devesh Kumar 3 years, 10 months ago

Hormones is a harmones

2Thank You

Sania Farhat 3 years, 10 months ago

Hormon is a chemical messenger

3Thank You

ANSWER

Newton law of motions

Posted by Nikhil Thakur 3 years, 10 months ago

CBSE > Class 09 > Science

3 answers

Param Sidhu 3 years, 10 months ago

Law1☞☞☞☞☞a body will remain in a state of motion or in state of rest until and unless and external force act on it this law is also known as law of inertia Law2☞☞☞☞☞☞according to this law momentum is directly proportional to net force acting on it Law3☞☞☞☞☞☞☞☞every action has an equal and opposite reaction (Fab= -Fba)

1Thank You

Sanket ... 3 years, 10 months ago

No bro 3 only

0Thank You

Virat Singh 3 years, 10 months ago

In class 9 there are 4 laws of Newton

0Thank You

ANSWER

According to the third law of motion action and reaction

Posted by Sumit Kumar 3 years, 10 months ago

CBSE > Class 09 > Science

5 answers

Param Sidhu 3 years, 10 months ago

According to third law of motion every action and reaction✧✧✧➜ are equal and opposite

1Thank You

Virat Singh 3 years, 10 months ago

Are equal

0Thank You

Raiput Aaditya 3 years, 10 months ago

The first two laws of motion till us how an applied force change the motion and provide us with a method of determining the force

0Thank You

Toshya . 3 years, 10 months ago

Act on two bodies in opposite direction

0Thank You

Nikhil Thakur 3 years, 10 months ago

Hii

0Thank You

ANSWER

All formulas of motion and force law and motion

Posted by Shreenath Atpadkar 3 years, 10 months ago

CBSE > Class 09 > Science

3 answers

K_Hushii 🍁 3 years, 10 months ago

Ya bro read your science book ch 8 ,9

0Thank You

Sanket ... 3 years, 10 months ago

Read the book science ch 8,9 bro ?

1Thank You

Sanket ... 3 years, 10 months ago

F = ma P = mv

0Thank You

ANSWER

What is displacement formula?

Posted by Arjun Gohil 3 years, 10 months ago

CBSE > Class 09 > Science

5 answers

Param Sidhu 3 years, 10 months ago

Velocity is equal to displacement upon time and ➜➜➜➜➜➜displacement is velocity multiply time

1Thank You

Sandhya Prajapati😘😘 3 years, 10 months ago

V-u

0Thank You

Devesh Kumar 3 years, 10 months ago

Displacement = v T

0Thank You

Shivansh Kumar Srivastava 3 years, 10 months ago

Final position of an object - initial position of the same object

0Thank You

Sanket ... 3 years, 10 months ago

Final - initial = displacement

1Thank You

ANSWER

An organelle X, that breath to produce energy in the cell is...

Posted by Rishabh Shivhare 3 years, 10 months ago

CBSE > Class 09 > Science

3 answers

Param Sidhu 3 years, 10 months ago

Mitochondria is the only site for energy in a cell therefore organelle X is mitochondria

0Thank You

Srishti Raj 3 years, 10 months ago

Mitochondria

0Thank You

Ishita Sirse 3 years, 10 months ago

Mitochondria

0Thank You

ANSWER

Difference between mass and weight ? ?

Posted by Sanket ... 3 years, 10 months ago

CBSE > Class 09 > Science

4 answers

Devesh Kumar 3 years, 10 months ago

Babla ho gaya hai kiya

0Thank You

Diksha Laniya🐥 3 years, 10 months ago

Hello

0Thank You

Diksha Laniya🐥 3 years, 10 months ago

Weight is the gravitational force acting on the body. Mass is the amount of matter the body contains. Relation between weight and mass is w=mg

2Thank You

Aaditya Pattaiya 3 years, 10 months ago

. No. Differentiating Property Mass Weight 1 Definition Mass is simply the measure of the amount of matter in a body. Weight is the measure of the amount of force acting on a mass due to acceleration due to gravity. 2 Denotation Mass is denoted by “M”. Weight is denoted by “W”. 3 Formula Mass is always constant for a body and there are several formulas to calculate mass. One way to calculate mass is: Mass = volume × density Weight is the measure of the gravitational force acting on a body. Weight can be calculated from the following formula: Weight = mass × acceleration due to gravity 4 Quantity Type Mass is a bas

1Thank You

ANSWER

Is weight greater than buoyancy force explain

Posted by Ashish Tomar 3 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Shreyansh Mishra 3 years, 9 months ago

If an object's average density is less than that of the surrounding fluid, it will float. ... The buoyant force, which equals the weight of the fluid displaced, is thus greater than the weight of the object. Likewise, an object denser than the fluid will sink.

1Thank You

ANSWER

What is Newton 1 law

Posted by Harshit Yadav 3 years, 10 months ago

CBSE > Class 09 > Science

5 answers

Harshit Yadav 3 years, 10 months ago

N1, 2,3,laws in short

0Thank You

Ashutosh Se Pandey 3 years, 10 months ago

Newton's first law states us that if an object is at rest or if and object or a body is in motion it does not change its state until any external force applied on it.

0Thank You

Mr. King 3 years, 10 months ago

According to Newton first law of motion if body is in rest or uniform motion it will be remains until any external force applied on it.

0Thank You

Komal Yadav Khola 3 years, 10 months ago

According to the newton first law of motion a body is in rest or uniform motion it will be remains until any external force applied on it

1Thank You

Anonymous Kumar 3 years, 10 months ago

Newton's first law states that an object will be keep moving or keep address stand still and external unbalanced forces act on its

2Thank You

ANSWER

Issac Newton

Posted by Sanket ... 3 years, 10 months ago

CBSE > Class 09 > Science

2 answers

Arjun Gohil 3 years, 10 months ago

A scientist

0Thank You

Diksha Laniya🐥 3 years, 10 months ago

No my father said no means no and I am say ok .

0Thank You

ANSWER

Anyone have sample paper of science...

Posted by Akshara Gupta 3 years, 10 months ago

CBSE > Class 09 > Science

4 answers

Param Sidhu 3 years, 10 months ago

https://t.me/class9term1 ✧✧join this telegram channel and you will get new term 1 study material of all subject including sample papers

1Thank You

Sandhya Prajapati😘😘 3 years, 10 months ago

Yes I have

0Thank You

Pratik Upadhyay 3 years, 10 months ago

Yes

1Thank You

Dayanand Prajapati 3 years, 10 months ago

I have

2Thank You

ANSWER

Chapter 3

Posted by ᴋᴀʀᴜɴᴀ ɴᴇɢɪ 05 3 years, 10 months ago

CBSE > Class 09 > Science

2 answers

Mànyà Jain 3 years, 10 months ago

Atoms and molecules

0Thank You

Arjun Gohil 3 years, 10 months ago

Atoms & moleculs

1Thank You

ANSWER

A car complete 3.0m/s and after travelling 2hour so it complete 3.0m/s and the driver applies break slowly and stops 10 s. So the car travelled farther after the break were applied.

Posted by Jahanavi Dobhal 3 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Param Sidhu 3 years, 10 months ago

u➜3m/s,,,v➜0m/s,,,,t➜10s to find s We'll first find acceleration a=0-3/10=0.3m/s² Now using s=ut+½at² We get s=3*10+½*0.3*100☞☞s=30+15✧✧➜➜☞☞s=45m show the car will travel 45 m further after the brakes applied

1Thank You

ANSWER

What is immunisation ? How will you improve it ?

Posted by Payal Kumari 3 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Nitish Kumar 3 years, 10 months ago

Immunization is the process of giving a vaccine to a person to protect them against disease. Immunity (protection) by immunization is similar to the immunity a person would get from disease, but instead of getting the disease you get a vaccine

2Thank You

ANSWER

Who discover dead cell

Posted by Naresh Shura 3 years, 10 months ago

CBSE > Class 09 > Science