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Posted by Yash And Pankhuri Newatia 7 years, 6 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

How to get sample paper

Posted by Saksham Saini 7 years, 6 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

What is collenchyma ?

Posted by Marina Saju 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

G Damani 7 years, 6 months ago

Its a type of meristematic tissue which provides flexibility to plant

ANSWER

Describe the 3 laws of inertia with examples

Posted by Srishti Singh 5 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 7 years, 6 months ago

Newton's first law of motion states that an object remains in a state of rest or of uniform motion in a straight line unless compelled to change that state by an applied force. In other words, all objects resist a change in their state of rest or motion.
In a qualitative way, the tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is called inertia.
This is why, the first law of motion is also known as the law of inertia.
Example1: We tend to remain at rest with respect to the seat until the driver applies a braking force to stop the motorcar due to the inertia of motion.
Example2: The dust particles fly away from the blanket when we jerk it due to the inertia of rest.

ANSWER

Nam name one type of Indian Bee and one types of Italian bee

Posted by Vivek Maurya 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 7 years, 6 months ago

Apis cerana indica, an Indian honey bee is a unique type of bee that is non-aggressive in nature and shows no signs of swarming in its behavioral pattern. This bee is also found in the neighboring countries of India, as it is a subspecies of Asiatic honey bee.

Apis mellifera Ligustica, found in Italy is the most well-known and domesticated honeybee.

With the exception of Antarctica, this bee can be found in almost every continent.

ANSWER

Why should we wear cotton clothes in summer

Posted by Roshni Bora 7 years, 6 months ago

CBSE > Class 09 > Science

3 answers

Kakul Kshatriya 7 years, 6 months ago

Because it helps in observing the Sweat and exposing it to atmosphere for easy evaporation so we have to wear cotton clothes in summer

Rishika Rathod 7 years, 6 months ago

Because cotton is a good absorber of sweat and it has small pores betweent them which allow air to pass through it hence the sweat gets evaporated and we feel cool.

Jessika .... 7 years, 6 months ago

Because it absorbs sweat and causes cooling effect

ANSWER

What is a saturated solution

Posted by Vinay Dhankhar 7 years, 6 months ago

CBSE > Class 09 > Science

6 answers

Naman Kumar 7 years, 6 months ago

A solution in which no more solute can be dissolved

Vishal Pal 7 years, 6 months ago

When no more solute can be dissolve in a solution at a given temperature is called saturated solution

Rishika Rathod 7 years, 6 months ago

A solution in which no more solut can dissolve at particular temp.

Marina Saju 7 years, 6 months ago

Saturated solution means in which no more solute can dissolve ( solute is salt and solvent is water )

Hardik Mittal 7 years, 6 months ago

substance nahi solute

Hardik Mittal 7 years, 6 months ago

a solution in which no more substance can dissolve

ANSWER

Smallest cell in male body

Posted by Gautam Kumar 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Jessika .... 7 years, 6 months ago

Sperm

ANSWER

How diary is done

Posted by Gautam Kumar 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Ritu Jha 7 years, 6 months ago

When the things you wanted to write in diary is done Your diary is done

ANSWER

What is the purpose of prepare tonned milk and double tonned milk?

Posted by Sakshi Singh 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Ritu Jha 7 years, 6 months ago

Tonned milk is for thin people. And double tonned milk is for fatty people. As tonned milk has full cream milk whereas in double tonned milk no cream

ANSWER

Identify the part of a cell which Is the site of many biochemical reactions

Posted by Swayam Kumar 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Anurag Mohanty 7 years, 6 months ago

Cytosol

ANSWER

Which physical quantities are to be altered for liquefied gases???????

Posted by Yashika Rajoria 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Yashika Rajoria 7 years, 6 months ago

Thnks ??

Jessika .... 7 years, 6 months ago

Applying pressure and reducing temperature

ANSWER

Why does the temperature of substance remain Constant during its melting point?

Posted by Koshambi Singh 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Chahat Agarwal 7 years, 6 months ago

The temperature of a substance remains constant during its melting point. This is because the substance uses latent heat of fusion to overcome force of attraction between particles of solids to change into liquid during melting, so the latent heat of vaporization overcomes force of attraction. Therefore the temperature of the substance remains constant

Janesh Verma 7 years, 6 months ago

Because the heat absorbed is used in changing temprature.

ANSWER

5g of sugar is dissolved in 250ml of water. Calculate the mass percentage.

Posted by Kalpana Choudhary 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Anshika Dubey 7 years, 6 months ago

5/255

Raina Joshi 7 years, 6 months ago

1.6%

ANSWER

Smollest cell of female body

Posted by Ujjwal Jha 7 years, 6 months ago

CBSE > Class 09 > Science

4 answers

Jessika .... 7 years, 6 months ago

Ovum

Swayam Kumar 7 years, 6 months ago

Ova

Chahat Agarwal 7 years, 6 months ago

Platelets

Himanshu Singh 7 years, 6 months ago

Cell

ANSWER

Short description about colony and castes of honeybee

Posted by Arpita Majumder 7 years, 6 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Why is the base of tower broad

Posted by Garvit Sharma 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 7 years, 6 months ago

Pressure = Force/Area
If the area is more, the pressure is less.
So if tower have wide foundations, they do not sink under the high pressure of tower.

ANSWER

Why is it essential for oxygen to reach each and every cell of the body

Posted by Kaashvi Tripathi 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Himanshu Singh 7 years, 6 months ago

To survive all the cell

ANSWER

Life cycle of p.vivax

Posted by Sai Pattnaik 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 7 years, 6 months ago

Life cycle of Plasmodium vivax is divided into:

Asexual life cycle or schizogony in man
Sexual life cycle or sporogony in female Anopheles mosquito

ANSWER

Wt r the Characteristics of gravitational force??

Posted by Smriti Pawar 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Sonali Aggarwal 7 years, 6 months ago

It is always an attractive force.
It is independent of the medium between the particles.
It holds good over a wide range of distances (i.e.,from interplanetary distances to interatomic distances).
The gravitational force between two particles is independent of presence or absence of other particles.
It is a conservative force, i.e., the work done in moving a particle once around a closed path under the action of gravitational force is zero.

Himanshu Singh 7 years, 6 months ago

Force with which two objects attract each other due to their masses

ANSWER

What is the modern technology used for catching fish?

Posted by Alicia Gomez 7 years, 6 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Gases are nitrogen ,argon,oxygen

Posted by Aditya Singh 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Abhay Mahar 7 years, 6 months ago

Yes

ANSWER

Which gas forms the liquid first as the air is cooled

Posted by Aditya Singh 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Ritesh Kumar 7 years, 6 months ago

Oxygen ???

ANSWER

Why we get the smell of hot food faster as comparison to cold food

Posted by Samiran Goswami 7 years, 6 months ago

CBSE > Class 09 > Science

5 answers

Naman Kumar 7 years, 6 months ago

Because the rate of diffusion faster in gases and

Anshika Dubey 7 years, 6 months ago

Because kinetic energy of hot food is higher as compared to cold food

Ritesh Kumar 7 years, 6 months ago

Because the rate of diffusion increases if the temperature is high so we are able to smell from far away. ???

Satyam Kumar 7 years, 6 months ago

Because the rate of diffusion is fastest in gases i.e.,the hot food.Hence the smell of hot food is faster in comparisin to the cold food

Jansi Sabharwal 7 years, 6 months ago

As because of fusion

ANSWER

Unit of speed

Posted by Mayank Singh 7 years, 6 months ago

CBSE > Class 09 > Science

4 answers

Naman Kumar 7 years, 6 months ago

M/s

Navneet Kaur 7 years, 6 months ago

Metre per second

Abhay Mahar 7 years, 6 months ago

M/S

Aman Gautam 7 years, 6 months ago

M/S. ( Metre per second)

ANSWER

Derive law of convesion of momentum explain it

Posted by Biswasi Naik 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Abhay Mahar 7 years, 6 months ago

Momeutum can neither be created nor be destroid the total momentum is conserved

ANSWER

State newton 3rd law of motion write one application of it

Posted by Biswasi Naik 7 years, 6 months ago

CBSE > Class 09 > Science

3 answers

Raina Joshi 7 years, 6 months ago

Application: while swimming we push the water backwards and the water pushes us forwards. 2. While walking we push the ground backwards nd it pushes us forward.

Supriya Giri 7 years, 6 months ago

For every action there is equal and opposite reaction for it. Application- we swing

Abhay Mahar 7 years, 6 months ago

For every action there is equal and opposite reaction

ANSWER

Define inertia why do we fall in the forward direction when a moving bus breaks to a stop

Posted by Biswasi Naik 7 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Kakul Kshatriya 7 years, 6 months ago

because of inertia of motion

Raina Joshi 7 years, 6 months ago

We tend to remain at rest with respect to the seat until the driver applies brakes to stop the bus. With the application of brakes the bus slows down but our body tends to continue in the same state of motion because of its inertia and we tend to fall in the forward direction.

ANSWER

State newton 2nd law of motion and derive it

Posted by Biswasi Naik 7 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Black Devil 7 years, 6 months ago

The rate of change of momentum of an object is proportional to the applied unbalance force in the direction of the force

ANSWER

Which would require a greater force :-accveleration a 2 kg mass at 5 m/s the power 2 on a 4 kg mass at 2m/s the power 2

Posted by Biswasi Naik 7 years, 6 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

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