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

The natural tendency of an object to maintain its state of test or of uniform motion is called inertia . A body with greater mass has greater inertia.

1Thank You

Simran Kaur 7 years, 2 months ago

Inertia is a property of any object which resist a change in its state of motion

2Thank You

ANSWER

What is meaning of buoyant force

Posted by Manisha Pawar 7 years, 2 months ago

CBSE > Class 09 > Science

4 answers

Prishu Kumar 7 years, 2 months ago

It means the upward force applied by water on the object.

0Thank You

Rasik Bhalla 7 years, 2 months ago

It is a force which is applied by water in the downward direction.

1Thank You

Yuvraj Singh Sisodiya 7 years, 2 months ago

It is a force which is applied on object in the water only, it attract object downward

0Thank You

Aysha Riha? 7 years, 2 months ago

Buoyncy means a force

0Thank You

ANSWER

Explain the characters of phylum chordata?

Posted by Vaish Shukla 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Cheshta Bhati 7 years, 2 months ago

1.These are exclusively marine animals. 2.They are triploblastic and have a ceolomic body i.e, ceolomate animals. 3.Body is bilaterally symmetrical. 4.Ex-Balanoglossus,Herdamania,etc.

2Thank You

ANSWER

Lophibilic

Posted by Himani Sharma 7 years, 2 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Lyophilic

Posted by Himani Sharma 7 years, 2 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

What are connective tissue? ?

Posted by Neha Panwar 7 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Ijaz Ahamed 7 years, 2 months ago

Its book not bool sry for spelling mistake

2Thank You

Ijaz Ahamed 7 years, 2 months ago

Tissues that are connected across the body is called connective tissues . For eg blood , bones etc for more information refer your bool

2Thank You

ANSWER

How can we prevent exposure of Air borne infections Water borne infections Vector borne infections

Posted by Shobhita Mantri 7 years, 2 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

trypanosoma is which type of protozoan?

Posted by Dipika Solanki 7 years, 2 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Explain how names and symbols of elements are given in modern days

Posted by Rishav Sharma 7 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Sayahnika Mishra 7 years, 2 months ago

Al for aluminium Co for cobalt He for helium This for your help and information

1Thank You

Sayahnika Mishra 7 years, 2 months ago

Symbol of elements its first letter written in capital and the other letter in small Eg:-Al, Co ,He

0Thank You

ANSWER

What are ray

Posted by Ravindra Patil 7 years, 2 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

What is the use of carbon disulphide

Posted by Secret Of Games 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Akanksha Kumari? 7 years, 2 months ago

It is used as a solvent to separate the mixture of sulphur and sand or other substances

0Thank You

ANSWER

Why did ship didn't submerge in river or a sea ?

Posted by Akshat Shukla 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Secret Of Games 7 years, 2 months ago

Because of their shape and some air is there which decreases its relative density and it floats on water

1Thank You

ANSWER

How is nuclear composition of an atom expressed?

Posted by Akshat Chandak 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Akshat Chandak 7 years, 2 months ago

An atom consists of a small, positively charged nucleus surrounded by electrons. ... The sum of the numbers of protons and neutrons in the nucleus is called the mass number and, expressed in amu, is approximately equal to the mass of the atom. An atom is neutral when it contains equal numbers of electrons and protons.

1Thank You

ANSWER

What is endocytosis ?

Posted by Ameya Ghare 7 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Tanish Jatana 7 years, 2 months ago

It is a process by which amoeba elgulfs its food

0Thank You

Gaurav Seth 7 years, 2 months ago

Endocytosis: Flexibility of the cell membrane to engulf food and other substances from external environment is called endocytosis. example: amoeba.

1Thank You

ANSWER

What are canal rays??

Posted by Ravindra Patil 7 years, 2 months ago

CBSE > Class 09 > Science

3 answers

Neha Panwar 7 years, 2 months ago

Canal rays are positively charged rays ?

2Thank You

Awsm Sonu 7 years, 2 months ago

They pass through canal that in holes in cathode are called as canal rays

2Thank You

Sakshi Shaw 7 years, 2 months ago

Eugen Goldstein discovered positively charged rays known as canal rays.

4Thank You

ANSWER

Different b/w manure and firtilizer

Posted by Aman Uchiya 7 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Sayahnika Mishra 7 years, 2 months ago

Manure is organic matter and fertilizer is an inorganic salts

0Thank You

Lokesh Girade 7 years, 2 months ago

manure is made up of bio waste fertilizer is made up of chemical like npk manure doesnt mix with water fertilizer can mix with water

2Thank You

ANSWER

Why transversal wave cannot produce in gases

Posted by Nityanand Priyadarshi 7 years, 2 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

What are lichen?

Posted by Yangzu Bhuti 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Khushi Boora 7 years, 2 months ago

It is a dual organisms formed by association between alga and fungus. Alga manufacturers food and fungi absorb water and minerals and provide protection to alga.

2Thank You

ANSWER

Why sound travel in a wave form

Posted by Sanyog Tripathi 7 years, 2 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

What is pulsepolio programme

Posted by Nandini Rani 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Khushi Boora 7 years, 2 months ago

It is a program to eradicate polio through immunization of children. It was launched in 1995-1996 to cover all children below the age of 3 years.

1Thank You

ANSWER

Who coined the term 'Protoplasm' for the fluid substance of the cell?

Posted by Priyadarsini Hotta 7 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Priyadarsini Hotta 7 years, 2 months ago

In the year 1839

1Thank You

Priyadarsini Hotta 7 years, 2 months ago

Purkinje

4Thank You

ANSWER

Which solution is used to put on the piece of the onion peel followed by a cover slip?

Posted by Priyadarsini Hotta 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Priyadarsini Hotta 7 years, 2 months ago

Safrannin

2Thank You

ANSWER

Formula of Acetic acid

Posted by Ritik Tevathiya 7 years, 2 months ago

CBSE > Class 09 > Science

3 answers

Durgesh Kumar Singh 7 years, 2 months ago

CH3COOH

1Thank You

Sakshi Shaw 7 years, 2 months ago

CH3COOH ( 3 will be at lower side of CH )

1Thank You

Sakshi Shaw 7 years, 2 months ago

CH3COOH ( 3 will be at lower right side of Chelsea)

2Thank You

ANSWER

Boiling point of alcohal is 78°c and that of water is 100°c.Explain separation technique will you use to saparate them from a mixture which liquid will be seprated first and which will be left behind. Draw a diagram to show the appartus and the setup used in the process

Posted by Loving Naved 7 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Ritik Tevathiya 7 years, 2 months ago

By fractional distillation alcohol separate first water left behind

1Thank You

Gaurav Seth 7 years, 2 months ago

Ethyl alcohol and water are completely miscible liquids and these have sufficient difference (22°C) in their boiling points.
So these can be separated by the process of simple distillation.
Experiment. Arrange the apparatus as shown in Fig. Take the mixture of ethyl alcohol and water in a distillation flask.
Heat slowly till the liquid starts boiling and the temperature of the liquids starts rising. At 78°C, vapours of alcohol will be
formed and get collected as liquid in the receiver after passing through the condenser. Temperature will remain constant
till all the alcohol in the mixture is evaporated. When the temperature starts rising, stop heating. Pure water is left in the
distillation flask and alcohol collects in the receiver.

2Thank You

ANSWER

What are the different types of potential energy

Posted by Arin Arpit 7 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Ritik Tevathiya 7 years, 2 months ago

Gravitational P.E in which the object kept against gravity or height.Elastic P.E in which the shape of the object change.

2Thank You

Sameer Pandey 7 years, 2 months ago

Gravitational potential energy Elastic potential energy Restoring potential energy

3Thank You

ANSWER

Difference between muscular tissue and nervous tissue

Posted by Lavanay Garg 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 7 years, 2 months ago

Muscle Tissue: They are involved in producing force and generating motion, either for the locomotion or for the movement within internal organs. There are three types of muscle tissue:

Skeletal Muscle – they are typically attached to bones
Cardiac Muscle – found in the heart.
Visceral or Smooth Muscle – they are found in the inner walls of organs.

Nervous Tissue: They are the main tissue components of the brain and spinal cord in central nervous system. While, in the peripheral nervous system, the neural tissue forms the cranial nerves and spinal nerves.

3Thank You

ANSWER

Write three characterist features of frog which is responsible for poor that frog is has amphibians

Posted by Aanchal Jaiswal 7 years, 2 months ago

CBSE > Class 09 > Science

3 answers

Khushi Boora 7 years, 2 months ago

° they require water for completion of life cycle as their larva is aquatic. ° Skin is smooth and without scales. ° Respiration takes place by gills, lungs or skin. ° Eggs are laid in water.

1Thank You

Aanchal Jaiswal 7 years, 2 months ago

Right but I asking three features

1Thank You

Ritik Tevathiya 7 years, 2 months ago

Frog can live on land and water thats why frog is amphibians

2Thank You

ANSWER