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Why mensuration occur

Posted by Sagar Chaurasia 6 years, 1 month ago

2 answers

Yogita Ingle 6 years, 1 month ago

In females, one egg is released from one ovary every month. Every month, the uterus prepares itself to receive the embryo in case fertilization occurs. But if fertilization does not occur, the uterine wall is shaded off in order to prepare itself for the ovary which will be released in the coming month. Hence, to discard the unwanted uterine endometrial lining and the ovary which is not fertilized the menstruation occurs in human females.

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Lakshmana Vel 6 years, 1 month ago

Summa

1Thank You

ANSWER

Does the Focal Length of concave mirror always negative????

Posted by Vanshika . 6 years, 1 month ago

CBSE > Class 10 > Science

8 answers

??Geetha Sree ?? 6 years, 1 month ago

It is always negative except when the object is placed btw pole and the focus.

1Thank You

Sanket Arjun 6 years, 1 month ago

Yes

1Thank You

Chayanika Dutta 6 years, 1 month ago

No . It is not always negative. It depends on the placement of object

2Thank You

Sagar Chaurasia 6 years, 1 month ago

2Thank You

Aadya Singh ? 6 years, 1 month ago

Sorry...?..I was wrong...It is always negative...

1Thank You

Vanshika . 6 years, 1 month ago

Thanks

1Thank You

Aadya Singh ? 6 years, 1 month ago

Sorry...positive

1Thank You

Aadya Singh ? 6 years, 1 month ago

No...when it is placed between pole and focus..then it is negative...

2Thank You

ANSWER

What is the difference between the manner in which movement takes place in a sensitive plant and the movement in our legs...???

Posted by Aadya Singh ? 6 years, 1 month ago

CBSE > Class 10 > Science

38 answers

Aadya Singh ? 6 years, 1 month ago

Hii ?

1Thank You

Akarsh Chauhan 6 years, 1 month ago

Hey????

2Thank You

Aadya Singh ? 6 years, 1 month ago

Hii

1Thank You

Akarsh Chauhan 6 years, 1 month ago

Hey

1Thank You

Aadya Singh ? 6 years, 1 month ago

Oh ???

1Thank You

Miss. 1234 6 years, 1 month ago

chlo kl subh mam ke ane se pehle bna lungi?????

1Thank You

Miss. 1234 6 years, 1 month ago

students ki list bss names with roll no. and unke marks!! PT ke school me likhne h.....but list toh bni hi nhii students ki???

1Thank You

Aadya Singh ? 6 years, 1 month ago

Kis liye list...?? ?

1Thank You

Aadya Singh ? 6 years, 1 month ago

Ye meko bhi pta h....history se 2 marks and geography se 4 marks k aayenge ???

1Thank You

Dr. Sanskari ?‍⚕️?‍⚕️ 6 years, 1 month ago

Usme 4 h.....pr Lahore hat gya.....to 3 m se 2 pakka????

1Thank You

Miss. 1234 6 years, 1 month ago

yrr????...meko nind aa rhi h...but meko list bnani thi aj hi...mam ne bola tha....kya kru?!

1Thank You

Dr. Sanskari ?‍⚕️?‍⚕️ 6 years, 1 month ago

Nationalism in ind......se 2 pakka

1Thank You

Dr. Sanskari ?‍⚕️?‍⚕️ 6 years, 1 month ago

Maps ......pure ho gye

1Thank You

Aadya Singh ? 6 years, 1 month ago

Maine to abhi tkk ready hi na kiya h ????

1Thank You

Aadya Singh ? 6 years, 1 month ago

Okk..

1Thank You

Dr. Sanskari ?‍⚕️?‍⚕️ 6 years, 1 month ago

M here

1Thank You

Miss. 1234 6 years, 1 month ago

OMG???map file se ek kaam yaad aya.... thnks Aadya ????

1Thank You

Miss. 1234 6 years, 1 month ago

book se...?and hmne file tkk bnayi h maps ki uspe mene sare imp maps kiye h....usme se ready kia..?

2Thank You

Miss. 1234 6 years, 1 month ago

i think all have gone...no one is here ????bye I'm also going to ???

1Thank You

Aadya Singh ? 6 years, 1 month ago

Miss....sst me maps kha se ready kiya h aapne..?? ?

3Thank You

Miss. 1234 6 years, 1 month ago

Sst achha??maps kr liye? 6 marks ke ayenge

2Thank You

Miss. 1234 6 years, 1 month ago

Best of luck??do ur best!!!?

2Thank You

Dr. Sanskari ?‍⚕️?‍⚕️ 6 years, 1 month ago

Sst......

1Thank You

Dr. Sanskari ?‍⚕️?‍⚕️ 6 years, 1 month ago

???????‍♂️?‍♂️?‍♂️?‍♂️?‍♂️?‍♂️?‍♂️

2Thank You

Miss. 1234 6 years, 1 month ago

Oooo?...of which subject?

1Thank You

Dr. Sanskari ?‍⚕️?‍⚕️ 6 years, 1 month ago

Kl exam h isiliye.......

1Thank You

Dr. Sanskari ?‍⚕️?‍⚕️ 6 years, 1 month ago

Nhiiiiiiiiiiiii

1Thank You

Miss. 1234 6 years, 1 month ago

or u can say need of better treatment ?????

3Thank You

Miss. 1234 6 years, 1 month ago

dr???i think u need a dr....??

2Thank You

Dr. Sanskari ?‍⚕️?‍⚕️ 6 years, 1 month ago

Ase hi bola......wow......wow....woooooohooòoooo......?????

1Thank You

Miss. 1234 6 years, 1 month ago

0Thank You

Miss. 1234 6 years, 1 month ago

isme wow kya tha???

2Thank You

Aadya Singh ? 6 years, 1 month ago

Kya hua doctor....??? ????

2Thank You

Miss. 1234 6 years, 1 month ago

what wow?!?

2Thank You

Dr. Sanskari ?‍⚕️?‍⚕️ 6 years, 1 month ago

Wow

2Thank You

Miss. 1234 6 years, 1 month ago

welcm dear??

2Thank You

Aadya Singh ? 6 years, 1 month ago

Thanks miss ??

2Thank You

Miss. 1234 6 years, 1 month ago

Movement in sensitive plants occurs in response to external or internal stimulus and is categorized as tropic or nastic movement; it is an involuntary action. whereas Movement in legs is under the regulation of nervous system and is a voluntary response, i.e., conscious response

4Thank You

ANSWER

What is the components of blood

Posted by Alok Kumar 6 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Aadya Singh ? 6 years, 1 month ago

RBC, WBC, platelets and plasma..

1Thank You

ANSWER

What is the resistance in air hwps

Posted by Nidhi Seth 6 years, 1 month ago

CBSE > Class 10 > Science

2 answers

Pooja Patel 6 years, 1 month ago

1.3×10^16

0Thank You

Piyush Kr.?? 6 years, 1 month ago

What is hwps here???

0Thank You

ANSWER

Xerophytic plants?

Posted by Diksha? 6 years, 1 month ago

CBSE > Class 10 > Science

14 answers

♛ ❝Ѕυнαɴα❞ ♛ 6 years, 1 month ago

1Thank You

Aadya Singh ? 6 years, 1 month ago

Bye shreya ?

2Thank You

Shreya Sharma?? 6 years, 1 month ago

Sbko bye.....kl maths h mere??

1Thank You

Shreya Sharma?? 6 years, 1 month ago

Mere kl maths ke h...

0Thank You

Shreya Sharma?? 6 years, 1 month ago

Kaisi ho adu...

1Thank You

Dr. Sanskari ?‍⚕️?‍⚕️ 6 years, 1 month ago

Mere bi exams.......sst h kl.

0Thank You

Aadya Singh ? 6 years, 1 month ago

Hii shreya ??

1Thank You

Shreya Sharma?? 6 years, 1 month ago

Mst hu....bs xm chl rhe..

1Thank You

Shreya Sharma?? 6 years, 1 month ago

Hii dikshu...hlo adu

1Thank You

Aadya Singh ? 6 years, 1 month ago

And u..?? ??

2Thank You

Aadya Singh ? 6 years, 1 month ago

Ekdam mst ?????

1Thank You

Aadya Singh ? 6 years, 1 month ago

hii ??

2Thank You

Shreya Sharma?? 6 years, 1 month ago

Hlo

2Thank You

Aadya Singh ? 6 years, 1 month ago

Plants which is grown in dry regions..?

2Thank You

ANSWER

A copper wire of resistivity 1.63×10^-8 ohm meter has cross section area of 10.3×10^-4cm square.calculate the length of the wire required to make a 20 ohm coil.

Posted by Naziya Alisha 6 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Isha Katyayan 6 years, 1 month ago

126.4m

1Thank You

ANSWER

List three events occurring during photosynthesis

Posted by Piyush Kumar 6 years, 1 month ago

CBSE > Class 10 > Science

4 answers

Abdulwahid Wahid 6 years, 1 month ago

Yes

0Thank You

Naziya Alisha 6 years, 1 month ago

(iii) reduction of carbon dioxide into carbohydrates

1Thank You

Naziya Alisha 6 years, 1 month ago

(ii) conversation of light energy into light energy into chemical energy

1Thank You

Naziya Alisha 6 years, 1 month ago

(i) Absorption of light energy by chlorophyll

1Thank You

ANSWER

Chlorea caused by

Posted by Chandan Sharma 6 years, 1 month ago

CBSE > Class 10 > Science

4 answers

Sam Pandey 6 years, 1 month ago

severe watery diarrhea..?

1Thank You

Arpit Srivastava 6 years, 1 month ago

bactrea

0Thank You

Piyush Kr.?? 6 years, 1 month ago

Bacterium Vibrio Cholerae....

2Thank You

Anshika - 6 years, 1 month ago

Bacteria

2Thank You

ANSWER

What happens when bar magnet moved quickly ttowards the solenoid

Posted by Pragya Sharma 6 years, 1 month ago

CBSE > Class 10 > Science

3 answers

Piyush Kr.?? 6 years, 1 month ago

A current flows and magnetic field is induced

1Thank You

Aniket Chakraborty 6 years, 1 month ago

It will form an electromagnet

0Thank You

Chanchal Gupta 6 years, 1 month ago

It generat the curent

0Thank You

ANSWER

How does the nervous Tissue cause action...???

Posted by Aadya Singh ? 6 years, 1 month ago

CBSE > Class 10 > Science

3 answers

Aadya Singh ? 6 years, 1 month ago

Thanks ☺

2Thank You

Diksha? 6 years, 1 month ago

Messages from nervous tissue, present in the brain arw sent to different body parts. These messages are sent in the form of electrical signals. These signals change the arrangement of protein in the muscle cells,which changes their structure and causes action?

1Thank You

Qwerty G 6 years, 1 month ago

Nervous tissue has an ability to generate electrical impulse in response to stimuli and to rapidly transmit the electrical impulse to the site of the origin along their length in a particular direction .due to electrical impulse they give message to brain and then cause action.

3Thank You

ANSWER

Major constituent of biogas

Posted by Divya K 6 years, 1 month ago

CBSE > Class 10 > Science

4 answers

Saurabh Gupta 6 years, 1 month ago

Methan carbon dioxide hydrogen & hydrogen sulphide

0Thank You

Nidhi Seth 6 years, 1 month ago

Methane #75%

0Thank You

Parishi Thada 6 years, 1 month ago

Methane (75%)

0Thank You

Aadya Singh ? 6 years, 1 month ago

Methane..

1Thank You

ANSWER

Oerste experiment.............

Posted by Nirmal Asati 6 years, 1 month ago

CBSE > Class 10 > Science

2 answers

Aadya Singh ? 6 years, 1 month ago

According to orested, when a current is produced along a conductor then magnetic effect is felt around the conductor is known as magnetic effect of electric current..

2Thank You

Aadya Singh ? 6 years, 1 month ago

I think it's orested..?

2Thank You

ANSWER

List in proper sequence four steps of obtaining germinating dicot seed

Posted by Ayush Aryan 6 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 6 years, 1 month ago

Four steps of obtaining germinating dicot seeds are :- (i) Imbibition (ii) Respiration (iii) Effect of light (iv) Mobilization of reserve food.

0Thank You

ANSWER

Balance the chemical equation Fe + h2o - fe3o4 + h2

Posted by Saru Subba Saru Subba 6 years, 1 month ago

CBSE > Class 10 > Science

4 answers

Sangeetha Velusamy 6 years, 1 month ago

Fe+12H2o - Fe3O4+12H2

0Thank You

Chanchal Gupta 6 years, 1 month ago

Like this 3fe+h2o-fe3o4+4h2

0Thank You

Avni Gupta 6 years, 1 month ago

3 Fe + 4H2o --- Fe3O4 + 4H2

1Thank You

Nirmal Asati 6 years, 1 month ago

3fe + 2HO2 - fe3o4 + h2 . I think this way

1Thank You

ANSWER

Syllabus for pre final 1

Posted by Mani Kumar 6 years, 1 month ago

CBSE > Class 10 > Science

0 answers

ANSWER

Explain in detail palaeontology evidences and physiological evidences

Posted by Mahesh Bishya 6 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 6 years, 1 month ago

Evidences of evolution: Some of the important sources which provide evidences for evolution are: (a) Analogous Organs: Organs which performs similar function but are different in structure and origin. Example - wings of a bird and wings of an insect. The presence of analogous organs indicates that even the organisms having organs with different structures can adapt to perform similar functions for their survival under hostile environmental conditions. Thus, the presence of analogous organs in different animals provide evidence for evolution by telling us that though they are not derived from common ancestors, they can still evolve to perform similar functions to survive, flourish and keep on evolving in the prevailing environment. (b) Homologous Organ: Organs which have different functions but similar structure and origin. Example - fore arm of frog, lizard, bird and human. The presence of homologous organs in different animals provides evidence for evolution by telling us that they are derived from the same ancestor who had the 'basic design' of the organ on which all the homologous organs are based. (c) Fossils: The remains of dead animals or plants that lived in the remote past are known as fossils. The fossils provide evidence of evolution. For example, a fossil bird called Archaeopteryx looks like a bird but it has many features which are found in reptiles. This is because Archaeopteryx has feathered wings like those of birds but teeth and tail like those of reptiles. Therefore, Archaeopteryx is a connecting link between the reptiles and birds and suggests that birds have evolved from reptiles. Thus, fossils provide evidence that the present plants and animals have originated from the previously existing ones through the process of continuous evolution.

0Thank You

ANSWER

When the image distance will be + or - in the case of convex mirror

Posted by Deepak Singh 6 years, 1 month ago

CBSE > Class 10 > Science

7 answers

Deepak Singh 6 years, 1 month ago

It always be positive

0Thank You

Sangeetha Velusamy 6 years, 1 month ago

Negative

0Thank You

Noob Pandey 6 years, 1 month ago

Image distance will be negative as the image formed on the left side of convex mirror. So according to new Cartesian rule, image distance will be negative

1Thank You

Chayanika Dutta 6 years, 1 month ago

Convex mirror always forms virtual image.So the image distance will be always positive

1Thank You

Bhumika Agrawal 6 years, 1 month ago

I am agree with Royal Thakur

0Thank You

????? ?????? 6 years, 1 month ago

Sorry the image distance will be positive because it forms virtual and erect image.

1Thank You

????? ?????? 6 years, 1 month ago

Image distance will always be negative because it forms real and inverted image in all case .

3Thank You

ANSWER

How to know about the image distance - or + in concave mirror and also in convex lens

Posted by Deepak Singh 6 years, 1 month ago

CBSE > Class 10 > Science

1 answers

????? ?????? 6 years, 1 month ago

When image is virtual and erect then the image distance will be positive but when it is real and inverted then the image distance will be negative. In concave mirror only in one case when object is between pole and focus then the image distance will be positive. In convex mirror image distance is always positive.

4Thank You

ANSWER

Role of pupil.

Posted by Vaibhavi Gupta 6 years, 1 month ago

CBSE > Class 10 > Science

3 answers

Vanshika . 6 years, 1 month ago

Controls and regulates the amount of light entering the eye

0Thank You

Yogita Ingle 6 years, 1 month ago

Pupil The pupil is essentially a hole in the center of your iris that controls how much light enters the eye. It's size is controlled by the relaxing and contracting of the iris. When there is high light intensity, the pupil shrinks while it grows in low light intensity. This is to ensure there is enough light for vision without damaging the sensitive retina.

1Thank You

Meghna Thapar 6 years, 1 month ago

The function of the pupil is to allow light to enter the eye so it can be focused on the retina to begin the process of sight.

1Thank You

ANSWER

What is sporification

Posted by Google Teacher 6 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 6 years, 1 month ago

The process of formation of spores in lower plants or as in fungi is called sporification.

1Thank You

ANSWER

What hapeen when lead nitrate is strongly heated

Posted by Mahesh Bhartiya 6 years, 1 month ago

CBSE > Class 10 > Science

2 answers

Anshika - 6 years, 1 month ago

The product form is yellow in colour

0Thank You

Meghna Thapar 6 years, 1 month ago

When lead nitrate is strongly heated, it forms a yellow residue lead monoxide, brown gas nitrogen dioxide and colourless gas oxygen.

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ANSWER

Take lead nitrate solution in a test tube,add potassium iodide solution to this what do we observe?

Posted by Shashwat Lamba 6 years, 1 month ago

CBSE > Class 10 > Science

2 answers

Arvind Kumar 6 years, 1 month ago

it lead to the formation of Lead iodide and potassium nitrate

1Thank You

Aadya Singh ? 6 years, 1 month ago

We observed that yellow precipitate of lead iodide is formed...

3Thank You

ANSWER

When we put silver spoon in copper sulphate solution then what is the chage in the spoon

Posted by Somya Pal 6 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Aadya Singh ? 6 years, 1 month ago

Not any reaction takes place because silver is less reactive than copper..

2Thank You

ANSWER

Difference between spit rings n slip rings?

Posted by Diksha? 6 years, 1 month ago

CBSE > Class 10 > Science

5 answers

Aadya Singh ? 6 years, 1 month ago

Ok..bye ??????

2Thank You

Aadya Singh ? 6 years, 1 month ago

Wlcm ???

1Thank You

Aadya Singh ? 6 years, 1 month ago

No..I'm not busy ??

3Thank You

Aadya Singh ? 6 years, 1 month ago

Split ring is used to change the direction of current after every half rotation while slip ring is used to make contact between the rotating coil and electric circuit...

4Thank You

Aarushi Gupta 6 years, 1 month ago

- Split rings are used in electric motors whereas slip rings are used in generators. - split rings are half circles whose inner side is insulted. They act as a commutator in motors. - slip rings also have insulated inner side but are circles.

2Thank You

ANSWER

Impt questions of chapter 1

Posted by Rajbir Singh 6 years, 1 month ago

CBSE > Class 10 > Science

3 answers

Himanshu Gupta 6 years, 1 month ago

All types of reactions and two-two example of each reaction. Chemical equation balancing

0Thank You

Diksha? 6 years, 1 month ago

Precipitation rxn

0Thank You

Diksha? 6 years, 1 month ago

Types of decomposition rxn wid eg?

0Thank You

ANSWER

Region of tongur for different taste

Posted by Hroodra Pratap 6 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Shivam Tomar 6 years, 1 month ago

Teri ma ka tongur

0Thank You

ANSWER

Write damaging effects on organism of ultraviolet radiation .

Posted by Roshan Tiwari 6 years, 1 month ago

CBSE > Class 10 > Science

2 answers

Himanshu Gupta 6 years, 1 month ago

Damaging effects of UV rays are as follow:- 1. Defect in vision, 2.skin cancer. This question is only 1 or 2 marker question.

0Thank You

Piyush Kr.?? 6 years, 1 month ago

Depending on the amount and form of the radiation as well as on the type of skin exposed, ultraviolet radiation can cause erythema,sunburnt photo damage,skin cancer, damage to the eyes, damage to the immune system of the skin and chemical hypersensitivity....

1Thank You

ANSWER

aluminium is more reactive than iron but yet corrosion is less than that of iron

Posted by Sachin Kumar 6 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 6 years, 1 month ago

Aluminum is more reactive than iron but it doesn't corrode It is because of aluminium oxide layer. Aluminium outer surface layer is oxidized whenever it came in contact with the air and so result in aluminium oxide layer which is resistive in nature and remain attached to it. So due to this it act as protective layer to inner aluminium to get oxidized with air while in iron as the surface layer of iron is oxidized, it form rust which is not remain attached to iron and fall off exposing the inner iron for further oxidation.

2Thank You

ANSWER

Give four uses of plaster of Paris.

Posted by Sourabh Dhakad 6 years, 1 month ago

CBSE > Class 10 > Science

3 answers

Himanshu Gupta 6 years, 1 month ago

There are 4 uses of 'POP', 1. It is use for fracture in our bone, 2. It is use for making of toys, 3. It is use to decorate our ceiling, 4. It is use for making toys,etc,.

0Thank You

Yogita Ingle 6 years, 1 month ago

1. Plaster of Paris is calcium sulphate hemihydrate
2.It is called plaster of Paris because it is obtained from gypsum and is found in Paris
3. It is obtained by heating gypsum
4. It is used for plastering fractured bones.
5. It is used in making toys.
6. It is used in making casts for statue toys etc.
7. It is used for making blackboard chalks.
8. It is used in dentistry.
9. It is used in laboratories.
10. It is a white powder.

2Thank You

Ashish Moharana 6 years, 1 month ago

It is use in making toys Use in fracture to give support

2Thank You

ANSWER