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

The main difference between Amphibians and reptiles is that Reptiles are land animals whereas amphibians live both on land and in water. Amphibians can breathe both through gills and lungs while reptiles breathe through lungs only

0Thank You

ANSWER

Composition of atoms of the first twenty elements with electron, neutron and proton distribution in various shell

Posted by Dolly Jha 2 years, 8 months ago

CBSE > Class 09 > Science

2 answers

꧁ঔৣ☬SนŇΐl ☬ঔৣ꧂ Dj 2 years, 8 months ago

How r u

1Thank You

꧁ঔৣ☬SนŇΐl ☬ঔৣ꧂ Dj 2 years, 8 months ago

1Thank You

ANSWER

Chapter 4 table 4.1

Posted by Dolly Jha 2 years, 8 months ago

CBSE > Class 09 > Science

5 answers

Itz_Khushi ❣️ 2 years, 8 months ago

Calcium ka 20 aur symbol (ca)

1Thank You

Itz_Khushi ❣️ 2 years, 8 months ago

Potassium ka atmic no. 19 hota h aur symbol (k) .

1Thank You

Abhishek Yadav 2 years, 8 months ago

Dolly apna number do

1Thank You

Dolly Jha 2 years, 8 months ago

Book mai potassium or calcium ka nhi hai

1Thank You

Sanket .........✨ 2 years, 8 months ago

? ye aacha tha vese jb book h yr to yaha kya puch rhi ho ?

1Thank You

ANSWER

Notes of structure of atom

Posted by Saniya Qureshi 2 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Sanket .........✨ 2 years, 8 months ago

Open the Book of science ncert ?ch 3

0Thank You

ANSWER

1 kilojoule = ______ joule

Posted by Sudhanshu Singh 2 years, 8 months ago

CBSE > Class 09 > Science

5 answers

Dolly Jha 2 years, 8 months ago

1000 Joule

0Thank You

Ayush Yadav 2 years, 8 months ago

1000

0Thank You

Shamshad Khan 2 years, 8 months ago

1000

0Thank You

Rajesh Dubey 2 years, 8 months ago

1000 joule

0Thank You

Arsh Hashim 2 years, 8 months ago

1000 joule

2Thank You

ANSWER

Write Universal law of Gravitation

Posted by Utkarsh Kr 2 years, 8 months ago

CBSE > Class 09 > Science

5 answers

Utkarsh Kr 2 years, 8 months ago

Thanks bro???

0Thank You

꧁ঔৣ☬SนŇΐl ☬ঔৣ꧂ Dj 2 years, 8 months ago

9.8m/s²

0Thank You

Sanket .........✨ 2 years, 8 months ago

The law of gravitation the force of attraction between two object is proportional to their masses and inversely proportional to the square of the distance between them . The law is applied to object anywhere in universe so the law is said to be universal ?

0Thank You

Sudhanshu Singh 2 years, 8 months ago

G = 6.67×10^-11

2Thank You

๖ۣۜṨhͥนBͣHͫ Yadav 2 years, 8 months ago

9.8m/s^2

3Thank You

ANSWER

What is the main motive of reproduction

Posted by Pritam Mohanty 2 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Shamshad Khan 2 years, 8 months ago

The main motive of reproduction is to increase the generation

0Thank You

ANSWER

What are the conditions favouring for airborne diseases

Posted by Sonam Yadav 2 years, 8 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

If V is 2 ,U is 3 then find focal length

Posted by S Ai 2 years, 8 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Give reason a car driver prefers to hit something soft say hay stock than a wall if his car goes out of control while driving

Posted by Yashika Kumari 2 years, 8 months ago

CBSE > Class 09 > Science

2 answers

Sia ? 2 years, 8 months ago

This is to decrease the rate of change of momentum by increasing the time. According to Newton's second law of motion, the car exerts lesser force & hence the impact of the reaction force on the car is small. 0n the other hand, the impact of reaction force imparted by the concrete wall would be very large which might cause serious incident, thereby damaging the car & hurting the driver.

0Thank You

Shreya Tiwari 2 years, 8 months ago

Weight of hay is less than the weight of wall and if the car the car apply less force to the hay then it will be displaced but for displacing the wall car will have to exert more force

0Thank You

ANSWER

Models of atoms, atomic number and atomic masses natural resources energy and it's type file assignment

Posted by Palak Batham 2 years, 8 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Detail the uses of various isotopes in medicine and research in ppt

Posted by Lakshya Jain 2 years, 8 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

How are polyatomic ions formed ?

Posted by Avi Pandey 2 years, 8 months ago

CBSE > Class 09 > Science

2 answers

Sia ? 2 years, 8 months ago

Just as ions are formed when neutral atoms gain or lose electrons, a polyatomic ion is formed when a neutral molecule gains or loses electrons.

1Thank You

Shreya Garg 2 years, 8 months ago

Polyatomic ions carry a group of charges . These are formed by lose or gain of electrons

0Thank You

ANSWER

Convert into mole

Posted by Aryabrat Gupta 2 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Parii ☁ 2 years, 8 months ago

Given mass divided my molecular mass

0Thank You

ANSWER

Notes on chapter 3 class 9

Posted by Naman Kumar 2 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Parii ☁ 2 years, 8 months ago

What is the name of the chapter?

0Thank You

ANSWER

How is green house effect related to global warming? Explain

Posted by Md. Amaan 2 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Shreya Tiwari 2 years, 8 months ago

Green house effect is related to global warming because earth acts like greenhouse as it absorb carbon dioxide and do not allow it to go out and due to this it cause rise in the temperature of earth which will become very harmful and destructive for us

0Thank You

ANSWER

An object of mass 20 kg is dropped from a height of 4m fill in the blanks in the following table by computing the potential energy and kinetic energy in each case

Posted by Tanvi Tanvi 2 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Parii ☁ 2 years, 8 months ago

Given, mass = 20kg height = 4m g(acceleration due to gravity) = 9.8m/s² Potential energy = mgh = 20×9.8×4 = 784J

0Thank You

ANSWER

Portfolio on chapter natural resources of class 9th

Posted by Saksham Jain 2 years, 8 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Wht is solution

Posted by Tejas Bg 2 years, 8 months ago

CBSE > Class 09 > Science

2 answers

Shamshad Khan 2 years, 8 months ago

According to science properties of Solution:it is a homogeneous mixture, it's particles are very small which we cannot see by naked eyes,it not scatters beam of light

0Thank You

Shiksha Raj 2 years, 8 months ago

The answer of any mathematics questions or any experiment conclusion is called solution.

0Thank You

ANSWER

If you need to contact me mail here [email protected]

Posted by Venkat Praveen V. 2 years, 8 months ago

CBSE > Class 09 > Science