Incorrect URL accessed!!!!

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Karbonn me protein ki sankhya

Posted by Himanshu Kanojiya 7 years, 2 months ago

CBSE > Class 09 > Science

0 answers

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Way does growth of a plant occur in specific regions

Posted by Shankar Yadav 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Pratyusha Samantaray 7 years, 2 months ago

The growth of plants occur in specific region because meristematic tissue is located at these points.

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Why lisosome are called suicide bag?

Posted by Priti Srama 7 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Ashish Kiran 7 years, 2 months ago

They digest whole cell

Pratyusha Samantaray 7 years, 2 months ago

Lysosome are known as suicide bag as they contain powerful enzymes when a cell gets damaged, lysosome may burst and the enzymes digest their own cell. Therefore, lysosomes are known as "suicide bags"of a cell.

ANSWER

What are congenital diseases? Give one example.

Posted by Manoj Kumar Singh 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Aditya Kumar Dangi 7 years, 2 months ago

The disease which occurs since the birth is called congenital disease.

ANSWER

Drive third equation of motion mathematically

Posted by Khushi Boora 7 years, 2 months ago

CBSE > Class 09 > Science

0 answers

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Why there is no any blanket(malae) upon the water but there is in milk

Posted by Supriya (Shubhi) 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Khushi Boora 7 years, 2 months ago

Because milk has dissolved fat in it which comes upon surface after heating as milk is colloidal solution but water is a compound so it has no other elements other than oxygen and hydrogen.

4Thank You

ANSWER

What is recoil velocity?

Posted by Alok Kumar 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Khushi Boora 7 years, 2 months ago

The velocity with which an object recoils

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What is apical tissue

Posted by Sidheswari Sidheswari 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Sandeep Singh 7 years, 2 months ago

Tissue which help in lingitudenal growth of plant is called apical meristem

ANSWER

How clouds formed

Posted by Gourav Kundlas 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Khushi Boora 7 years, 2 months ago

Water vapours moves upward and collapsed around dust particles and thus cloud formed

ANSWER

What is the persistence of vision of human eye

Posted by Sayahnika Mishra 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Sandeep Singh 7 years, 2 months ago

Persistence of vision works because the human eye and brain can only process 10 to 12 separate images per second, retaining an image for up to a fifteenth of a second.

4Thank You

ANSWER

Difference between parenchyma ,sclenchyma ,collenchyma

Posted by Vipul Phalswal 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 6 years, 1 month ago

Parenchyma tissue consists of relatively unspecialised cells with thin cell walls. They are live cells. They are usually loosely packed, so that large spaces between them. This tissue provides support to plants and also stores food. In some cases, it contains chlorophyll and performs photosynthesis, and then it is called as chlorenchyma. In aquatic plants, large air cavities are present in parenchyma to give buoyancy to the plants to help them float. Such a parenchyma type is called aerenchyma. The parenchyma of stems and roots also stores nutrients and water.

The cells of collenchyma tissue are living, elongated and irregularly thickened at the corners. There is very little or no intercellular space. It allows easy bending in various parts of a plant (leaf, stem) without breaking. Thus, provides flexibility to the plant. It also provides mechanical support to plants.

The cells of sclerenchyma tissue are dead. They are long and narrow as the walls are thickened due to deposition of lignin. The walls of cells are so thick that there is no internal space inside the cell. This tissue is present in stems, around vascular bundles, in the veins of leaves and in the hard covering of seeds and nuts. It provides strength to the plant parts and makes the plant hard and stiff.

ANSWER

Characteristics of plant Kingdom :fungi in three point

Posted by Ratna Das 7 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Likhitha C 7 years, 2 months ago

*Saprotropic *Non-photosythetic *Multicellular

Tannu Punia 7 years, 2 months ago

Fungi is hetrotropic Fungi is eukaryotic Have cell wall made of sugar called chitin

3Thank You

ANSWER

Draw a diagram of two sound waves which have same frequency but different amplitude

Posted by Naman Jain 7 years, 2 months ago

CBSE > Class 09 > Science

0 answers

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Good draw dry gram off to sound waves which is which have same frequency but different amplitude amplitude

Posted by Naman Jain 7 years, 2 months ago

CBSE > Class 09 > Science

0 answers

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A hot air balloon is moving upward with velocity 2 m/s. A ball is dropped from it reaches the ground in 3 sec. Calculate with what velocity of ball would strike the ground. Take g = 10 m/s

Posted by Satyapal Yadav 7 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Satyapal Yadav 7 years, 2 months ago

28 m/s

Sahil Arora 7 years, 2 months ago

30m/s

ANSWER

Why thw wind blows.....

Posted by Sourabh Yadav 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Khushi Boora 7 years, 2 months ago

Because of its tendency to move from high concentration to low concentration.

ANSWER

At which temperature is the density of water maximun?

Posted by Aman Yadav 7 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Aman Yadav 7 years, 2 months ago

☄️Josna ☄️ 7 years, 2 months ago

1℃

ANSWER

What us the difference between thrust and pressure....???? ??????

Posted by Sandhya Singh 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Akanksha Kumari? 7 years, 2 months ago

Thrust is the force acting on a body perpendicular to the surface. Pressure is the force acting on a body per unit area.

ANSWER

What is archemedies principle....??? ???

Posted by Sandhya Singh 7 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Satyapal Yadav 7 years, 2 months ago

When an object wholly or partially immersed in a liquid. When it's experience a buoyant force or upthrust which is equal to the weight of liquid displaced by the object.

Gungun Goyal 7 years, 2 months ago

Archimedes principle states that the upward by on force that is exerted on a body immersed in fluid whether fully or partially submerged is equal to the weight of fluid that the body displaces and acts in upward direction at centre of mass in body displaces

3Thank You

ANSWER

What do you mean by carbon and its compounds?? Explain?

Posted by Nidhi Pandey 7 years, 2 months ago

CBSE > Class 09 > Science

0 answers

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What will happen to the amount of work done if a. The magnitude of the force applied is increased. B. The displacement of the body is reduced

Posted by Aftab Baig 7 years, 2 months ago

CBSE > Class 09 > Science

0 answers

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Write the laws of reflection of sound

Posted by Pooja Dhyani 7 years, 2 months ago

CBSE > Class 09 > Science

3 answers

Akilan Elango 7 years, 2 months ago

The laws of reflection of sound state that: 1) angle of incidence= angle of reflection 2) the incident ray, reflected ray and normal all lie on the same plane

Radha Tandon 7 years, 2 months ago

1.Angle of incidence=Angle of reflection or angle i=angle r 2.The incidence ray ,normal and reflected ray both lies on same plane

Sangita???? Ankita 7 years, 2 months ago

incident ray =reflected ray

ANSWER

State Newton's second law of motion and derive it mathematically?

Posted by Er Trivedi 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Khushi Boora 7 years, 2 months ago

Rate of change of linear momentum is directly proportional to external applied force. F= mv-mu/t = m(v-u)/t = ma

ANSWER

An atom is electrically natural how can it become charged explain with the help of examples

Posted by Ankit Choubey 7 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Khushi Boora 7 years, 2 months ago

It becomes charged on losing or gaining electrons