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Anuj Paliwal 35 minutes ago

1-Packaging tissues 2-Intracellular spaces are absent 3-All cells are living cells. 4-Cell wall is thin and made up of cellulose.
  • 1 answers

Anuj Paliwal 33 minutes ago

Lichens are not found in delhi becoz dwlhi is full of pollution and lichens cannot survive in the atmosphere having full of harmful gases.
  • 1 answers

Shekhar Thakur 4 hours ago

kingdom animalia mean the kingdom of animals
  • 1 answers

Saurav Kumar 12 hours ago

What is second law of motion
  • 1 answers

Yogita Ingle 14 hours ago

Diseases are caused as result of following reasons:

  • Lack of nutritious and sufficient food.
  • &Unhealthy and dirty surroundings.
  • Contact with an infected person.
  • Using the personal belongings of an infected person.
  • Eating untreated water and food from an unclean and unhygienic place.
  • Lack of hygienic practices
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  • 2 answers

Anshi Singh 13 hours ago

Question has some mistake it's pasturage not pressed . Ur answer is here.. 👇 Ans : Pasturage includes the plant and trees found around on apiary parts from them, nector and pollen are collected by bees to form honey. Pasturage plays an important role in determining the quality and quantity of honey. (i) quality of honey depends upon the pasturage (ii) kinds of flowers determine the taste of honey. Hope it helps yu..!!

Rajesh Nirmalkar 15 hours ago

Not understanding the question
  • 3 answers
It is used to filter water

Thl Kaushik 16 hours ago


Ashutosh Kumar 17 hours ago

Filter paper is used to seperate substances
  • 5 answers
In leaf
It is located in leaf The small hole present in the leaves

Nisha Singh 16 hours ago

In the leaf surface

Yogita Ingle 18 hours ago

Stomata are the minute openings, generally found in the epidermis of leaves. They are typically found in plant leaves and can also be found in stems and other parts of plants.  Stomata play an important role by permitting the movement of gases such as oxygen, carbon dioxide, and water vapour to diffuse between the interior and outer surface of the plant tissues.

Vivek Rathore 19 hours ago

In the leaf surface
  • 3 answers

Pari Bathla 16 hours ago

The experiments carried out by other scientists could not be explianed by this model of atom. This was the limitation of thomson model of atom.

Anil Kumar 18 hours ago

Why sound call the mechanical soun

Super Khiladi 23 hours ago

JJ Thomson's model of atom could not explain the result of the scattering experiment performed by Rutherford.
  • 3 answers
The all matters are made of small particels

Khushpreet Kaur 18 hours ago


Anamika Sharma 1 day, 3 hours ago

All matters are made up of tiny particles ,these particles called atom.
  • 1 answers
It bread for its next genration
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Meghna Thapar 1 day, 11 hours ago

Few diseases caused by bacteria are:

(i) Tuberculosis (T.B.) – T.B. is an infectious disease which is communicated from one person to another directly or indirectly. It is caused by  bacterium called Mycobacterium tuberculosis. T.B. can affect all parts of the body such as lungs, lymph glands, bones, intestine etc.

(ii) Cholera – Cholera is an acutely infectious, fatal disease and is more common during overcrowded fairs, festivals and after floods. Cholera is caused by the bacterium Vibrio Cholerae. It is transmitted by flies, contaminated water and food.

(iii) Typhoid – Typhoid is most common communicable disease in India. Typhoid fever is common in humans of the age 1to 15 years age group. Typhoid is caused by a rod-shaped and motile bacterium, called Salmonella typhi which is commonly found in the intestine of human beings. Human infection is direct.

(iv) Diarrhoea – Diarrhoea is an abnormally frequent discharge of semisolid or fluid faeces. The diarrhoea spreads through infection by contaminated food, water, drinks, hands, clothes, etc. The causative agents of diarrhoea are mainly bacteria such as Escherichia coli, Clostridium botulinum, Shigella dysentiriae, Campylobacter jejuri and Salmonella.


  • 1 answers

Meghna Thapar 1 day, 11 hours ago

  • Tyndall  effect  can  be  defined  as the  scattering  of  a  beam  of  light by  colloidal  particles  present  in  a colloidal solution. Tyndall effect can also be observed when a fine beam of light enters a room through a small hole.
  • Crystallisation: The process of formation of crystals from a hot saturated solution by cooling. This method involves dissolving the mixture completely in water and heating this mixture. Further, cooling of this mixture results in the formation of crystals of a less soluble solid on the surface of the solution.
  • An  element  can  be  defined  as  a  basic  form  of  matter which cannot  be  broken  down  into  simpler substances by any physical or chemical means. A compound is a pure substance composed of two or more elements combined chemically in a fixed proportion by mass.

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Vartika Varshney 1 day, 12 hours ago


Abhi Pateriya 1 day, 12 hours ago


Aditya Singh 1 day, 13 hours ago

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Meghna Thapar 21 hours ago

There are 16 essential elements, out of which carbon and oxygen are obtained from air, hydrogen from water and remaining 13 elements are supplied by soil. These essential elements are divided into two categories: macronutrients and micronutrients. Amongst the thirteen nutrients, six are required in large quantities and are therefore called macro-nutrients. The other seven nutrients are used by plants in small quantities and are therefore called micro-nutrients.

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Meghna Thapar 1 day, 11 hours ago

  • Bohr's Model of an Atom:


Niels Bohr, revised Rutherford’s atomic model and put forth the following suggestions:


Neils  Bohr  proposed  that  the  electrons  possess  a  specific  amount  of  energy which allows  them  to revolve around the nucleus. The electrons are confined to these energy levels.  While  revolving  in  these  discrete  orbits,  the electrons  do  not  radiate  energy.  Hence, these orbits  are  also  known  as stationary  orbits or stationary shells. Smaller the size of the orbit, smaller is its energy.


As we move away from nucleus, the energy of the orbit increases progressively. The  transfer  of  an  electron  from  one  orbit  to  another  is  always  accompanied  with  absorption  or emission of energy. When an electron jumps from a lower energy level to a higher energy level, it absorbs energy. When an electron returns from a higher energy level to a lower energy level, it emits energy.

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Rehan Khan 1 day, 15 hours ago

Echo is the sound that we listened when we shout by standing 17.2 meter away than we can listen the echo clearly Reberation means the sound that we shout but not able to listen but it the sound stay there but doesn't produce sound so we can listen it This was the definition

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