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Palak ? 5 years, 2 months ago

Hey muskan.... It's answer is:- The state of being aware of and responsive to one's surrounding.... Please search preksha rana channel on YouTube and if u like her video like it and share it plzz

Sakshi Jagtap 5 years, 2 months ago

the state of being aware of and responsive to one's surroundings.....hope this helps uhh?

ANSWER

What are the boundaries of universe?

Posted by Muskan Sharma 5 years, 2 months ago

CBSE > Class 10 > Science

5 answers

Gunjan Garg 5 years, 2 months ago

Universe is endless nobody can still able to find the boundaries of universe because after a certaon area covered there is a black spot comes where all the electronic gagets stops working in other words whoever that had go there have never returned back

Akhya Sahay 5 years, 2 months ago

Go and find out.

Tanya Singh 5 years, 2 months ago

The refractive index of diamond is 2.42. What is the meaning of this statement

Sanjay Bhosale 5 years, 2 months ago

Yaa

Sakshi Jagtap 5 years, 2 months ago

There r no❌ boundaries of the universe

ANSWER

How and why do variations arise?

Posted by Pratibha Bharat 5 years, 2 months ago

CBSE > Class 10 > Science

3 answers

Account Deleted 5 years, 2 months ago

Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

Muskan Sharma 5 years, 2 months ago

Muskan Sharma 5 years, 2 months ago

Genetic variation can be caused by mutation (which can create entirely new alleles in a population), Gandom mating, Gandom fertilization, and recombination between homologous chromosomes during meiosis ( which reshuffles alleles within an organism's offspring).

ANSWER

Writer a note on Stanley miller and Urey's experimenr

Posted by King Adithya H M... 5 years, 2 months ago

CBSE > Class 10 > Science

2 answers

Sakshi Jagtap 5 years, 2 months ago

Miller Urey Experiment Stanley L. Muller and Harold C. Urey performed an experiment to describe the origin of life on earth. They were of the idea that the early earth’s atmosphere was able to produce amino acids from inorganic matter. The two biologists made use of methane, water, hydrogen, and ammonia which they considered were found in the early earth’s atmosphere. The chemicals were sealed inside sterile glass tubes and flasks connected together in a loop and circulated inside the apparatus. One flask is half-filled with water and the other flask contains a pair of electrodes. The water vapour was heated and the vapour released was added to the chemical mixture. The released gases circulated around the apparatus imitating the earth’s atmosphere. The water in the flask represents the water on the earth’s surface and the water vapour is just like the water evaporating from lakes, and seas. The electrodes were used to spark the fire to imitate lightning and storm through water vapour. The vapours were cooled and the water condensed. This condensed water trickles back into the first water flask in a continuous cycle. Miller and Urey examined the cooled water after a week and observed that 10-15% of the carbon was in the form of organic compounds. 2% of carbon had formed 13 amino acids. Yet, the Miller and Urey experiments were condemned by their fellow scientists.........hope this helps uhh ?

Sakshi Jagtap 5 years, 2 months ago

STANLEY LLOYD MILLER (March 7, 1930 – May 20, 2007) was an American chemist who made landmark experiments in the origin of life by demonstrating that a wide range of vital organic compounds can be synthesized by fairly simple chemical processes from inorganic substances. In 1952 he carried out the Miller–Urey experiment, which showed that complex organic molecules could be synthesised from inorganic precursors. The experiment was widely reported, and provided support for the idea that the chemical evolution of the early Earth had led to the natural synthesis of chemical building blocks of life from inanimate inorganic molecules.He has been described as the "father of prebiotic chemistry".

ANSWER

How could the white light of the sun give us various colours of the rainbow

Posted by Varsha Pal 5 years, 2 months ago

CBSE > Class 10 > Science

4 answers

Itz Raman Here ☺ 5 years, 2 months ago

yogita engel is a vry intellegent girl . she give vry gud answerss

ಹರ್ಷನಂದ ಹರ್ಷನಂದ 5 years, 2 months ago

Yogita Ingle 5 years, 2 months ago

Actually sun gives us no white light but when it rains and at the same time the sun is seen only then sun's light passes through the tiny droplets of water falling and it is said that when white light passes through any transperant object like glass,etc...then it forms VIBGYOR meaning v-violet i-indigo b-blue g-green y-yellow o-orange r-red nd hence forms rainbow.

Sakshi Jagtap 5 years, 2 months ago

When the Sun is shining and there is rain as well you may see a rainbow in the sky! ... Rainbows appear in seven colors because water droplets break white sunlight into the seven colors of the spectrum (red, orange, yellow, green, blue, indigo, violet) bcuz each color is refracted differently, each bends at a different angle.....hope this helps uhh?

ANSWER

Why did Mendel selected pea plant for study inherited?

Posted by Swati Roy 5 years, 2 months ago

CBSE > Class 10 > Science

4 answers

Akhya Sahay 5 years, 2 months ago

Due to its 7 traits. A lot of varieties

King Adithya H M... 5 years, 2 months ago

Easy to growing, Need less time to grow, Have less maintenance, Many genera

Yogita Ingle 5 years, 2 months ago

Mendel selected garden pea plant for his experiments because of the following characteristics:

(i) The flowers of this plant are bisexual.

(ii) They are self-pollinating, and thus, self and cross pollination can easily be performed.

(iii) The different physical characteristics were easy to recognise and study.

(iv) They have a shorter life span and are the plants are easier to maintain.

Sakshi Jagtap 5 years, 2 months ago

Mendel selected pea plant for study inherited bcuz..... 1. Easy to grow...... 2. Have less maintenance...... 3. Many generations can be studied..... 4. Need less time to grow....... 5. Flowers of this plant r bisexual containing both male n female....... I THINK I DID MY BEST TO MAKE U UNDERSTAND THE ANSWER BETTER..... Hope this helps uhh?

ANSWER

What happen when: Bar magnet is placed inside the solanoid

Posted by Its Indresh 5 years, 2 months ago

CBSE > Class 10 > Science

2 answers

Sakshi Jagtap 5 years, 2 months ago

ANSWER:- it will no longer function as a magnet..... Bringing the bar magnet into the solenoid causes an e.m.f. in the solenoid and a current flows and a magnetic field is produced because the circuit is closed.....hope this helps uhh?

Vijay Kumar 5 years, 2 months ago

When a bar magnet is placed or kept inside the solenoid, it will no longer function as a magnet. Bringing the bar magnet into the solenoid causes an e.m.f. in the solenoid and a current flows and a magnet field is produced because the circuit is closed.

ANSWER

Provide me with some practical questions of Flemings left hand rule

Posted by 14 Anvi Kashyap 1489 5 years, 2 months ago

CBSE > Class 10 > Science

1 answers

Angel Joshi 5 years, 2 months ago

Fleming left hand rule? Maxwell right hand thumb rule ??

ANSWER

Define taxonomy. ??

Posted by Lucifer?? Morningstar?? 5 years, 2 months ago

CBSE > Class 10 > Science

3 answers

Shruti Janghu 5 years, 2 months ago

The science used in biology for naming plants and animals..... Hopes it helps uh?

Muskan Sharma 5 years, 2 months ago

Taxonomy is the science of naming, describing and classifying organisms and includes all plants, animal and microorganism of the world.

Sakshi Jagtap 5 years, 2 months ago

the classification of something, especially organisms.

ANSWER

Define the principle focus of the concave mirror.

Posted by Dev Padaliya 5 years, 2 months ago

CBSE > Class 10 > Science

3 answers

Shruti Janghu 5 years, 2 months ago

Principal focus for concave mirror is that point at which all the light rays converges

Sakshi Jagtap 5 years, 2 months ago

The principle focus of concave mirror is a point on its principle axis to which all the light rays which are parallel and close to the axis, converge after reflection from the mirror......hope this helps uhh?

Muskan Sharma 5 years, 2 months ago

Light rays that are parallel to the principal axis of a concave mirror converge at a specific point on its principal axis after reflecting from the mirror. This point is known as the principal focus of the concave mirror.

ANSWER

Clarify the terms 'haploid' and 'diploid'. What is the relation between the two term

Posted by Shreedatree Sahoo 5 years, 2 months ago

CBSE > Class 10 > Science

2 answers

Aziz Fatima 5 years, 2 months ago

Haploid - Haploid is a cell or organism that has a single set of chromosomes . For example, human *** cells( egg and sperm) Diploid - Diploid is a cell or organism that has paired chromosomes ,one from each parent For example, human cells ( except *** cells) are diploid and have 22 pairs of chromosomes.

Sakshi Jagtap 5 years, 2 months ago

Diploid is a cell that has paired or two sets of chromosomes, one from each parent....... Haploid is a cell or organism that has just a single copy of each chromosome.....hope this helps uhh?

ANSWER

On what basis a chemical equation balanced ?

Posted by Megha Banar 5 years, 2 months ago

CBSE > Class 10 > Science

4 answers

Shruti Janghu 5 years, 2 months ago

No of atoms of the element

Jishan Rayeen Jishan Rayeen 5 years, 2 months ago

On the number of atom of element

Sakshi Jagtap 5 years, 2 months ago

A chemical equations r balanced when number of atoms of all the molecules is equal on both sides of the equation.....hope this helps uhh ?

5Thank You

Muskan Sharma 5 years, 2 months ago

A balanced chemical equation has equal numbers of atom of different element in reactants and products.

3Thank You

ANSWER

What is self pollination and cross pollination

Posted by Jogener Tandan 5 years, 2 months ago

CBSE > Class 10 > Science

3 answers

Ramadevi.K? K 5 years, 2 months ago

Pollination:-The transfer of pollen grains from anther to stigma is known as pollination Self pollination:-when the pollination occurs in same flower or different flowers of same plants is known as self pollination. Cross pollination:-when the pollination occurs in different flowers of different plants such a pollination is called is as. Cross pollination it requires pollinating agencies like air,water, insects,etc... Hope this will help you...!??

Sakshi Jagtap 5 years, 2 months ago

ANSWER:- SELF POLLINATION- the transfer of pollen from the anther to the stigma of the same flower, another flower on the same plant, or the flower of a plant of the same clone............ CROSS POLLINATION- The transfer of pollen from an anther of a flower of one plant to a stigma of a flower of another plant of the same species.......... hope this helps uhh?

Muskan Sharma 5 years, 2 months ago

Self pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant .cross pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different in the individual of the same species.

ANSWER

when violet flower present in axial crossed with white flower at the terminal what is the result of F2 generation make checkerboard and explain the result

Posted by Prakrathi Hebri 5 years, 2 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 5 years, 1 month ago

A monohybrid cross is a cross with one pair of contrasting characters.

Out of the two alleles for a particular gene one is the dominant allele another is the recessive allele.

The phenotypic raion in monohybrid cross is 3:1.

Law of dominance states that in a pair of alleles one is a dominant character and other is a recessive character. Only the dominant character will show itself in the heterozygous trait. The recessive character can show itself when it is present in a homozygotic condition. This is derived from the monohybrid cross.

ANSWER

exercise 5.9 class 11 physics

Posted by Anushka Swarnkar 5 years, 2 months ago

CBSE > Class 10 > Science

2 answers

Itachi Uchiha ? 5 years, 2 months ago

Join this meet.google.com/vkd-rwgd-dbx

Itachi Uchiha ? 5 years, 2 months ago

Anushka plzz join it?meet.google.com/fdj-hkwu-uyt

ANSWER

In which year did henry moseley started their experiments related to the modern periodic table..

Posted by Dhruv Barad 5 years, 2 months ago

CBSE > Class 10 > Science

4 answers

King Adithya H M... 5 years, 2 months ago

1914

Itachi Uchiha ? 5 years, 2 months ago

Join this meet.google.com/vkd-rwgd-dbx

Itz Raman Here ☺ 5 years, 2 months ago

1914

Dhruv Barad 5 years, 2 months ago

In the year 1913

ANSWER

What are hetrotrophe

Posted by Pardeep Godiyal 5 years, 2 months ago

CBSE > Class 10 > Science

5 answers

Rihanshu Survanshi Singh 5 years, 2 months ago

Those animals eats only green plants and also make own food

Muskan Sharma 5 years, 2 months ago

Heterotrophic cannot synthesize their own food and rely on other organisms- both plants and animals-for nutrition

Sakshi Jagtap 5 years, 2 months ago

Organisms which cannot produce it's own food, depend on other organisms for food.

Vikash Kumar 5 years, 2 months ago

An organisms deriving it's nutritional requirements from complex organic substances are called hetrotrophe

Muskan Sharma 5 years, 2 months ago

heterotrophs are known as consumer because they consume producers or other consumers. dogs, birds , fish, and humans are also example of heterotrophic.

ANSWER

Dark reaction of photosynthesis does not need light . Do plant undergo dark reaction at night ? explain.

Posted by Muskan Sharma 5 years, 2 months ago

CBSE > Class 10 > Science

5 answers

Muskan Sharma 5 years, 2 months ago

Autotrops are known as producers because they are able to make their own food from ra materials and energy. example include plants, algae,and some types of bacteria.

Sakshi Jagtap 5 years, 2 months ago

When the milk is left at room temperature during summer season the oxidation reaction occurs and the growth of microorganisms occur due to which it gets sour.....hope this helps uhh Pardeep...

Pardeep Godiyal 5 years, 2 months ago

What is autotrophe

Pardeep Godiyal 5 years, 2 months ago

What happens when milk is left open at room temperature during Summer

Sakshi Jagtap 5 years, 2 months ago

Dark reaction of photosynthesis does not require light. Both the light and dark reactions occur in the day. As dark reaction does not require light it doesn't meant it occurs at night, it only requires products of light reaction like ATP n NADPH........hope it helps uhh?

ANSWER

How much does the earth weight?

Posted by Muskan Sharma 5 years, 2 months ago

CBSE > Class 10 > Science

5 answers

Itachi Uchiha ? 5 years, 2 months ago

Now join the link

Itachi Uchiha ? 5 years, 2 months ago

R u ready for study with friends..

Itz Raman Here ☺ 5 years, 2 months ago

6 ×10 ^24

King Adithya H M... 5 years, 2 months ago

6×10²⁴kilograms or 1.3×10²5 pounds

Sakshi Jagtap 5 years, 2 months ago

5.972 × 10^24 kg.....hope this helps uhh?

ANSWER

What happens in the gray zone between solid and liquid.

Posted by Muskan Sharma 5 years, 2 months ago

CBSE > Class 10 > Science

2 answers

Itachi Uchiha ? 5 years, 2 months ago

Join this meet.google.com/vkd-rwgd-dbx

Sakshi Jagtap 5 years, 2 months ago

From liquid to solid or solid to liquid the transition has to cross the grey zone. This grey zone transition is is very crucial which includes the inter molecular forces acting on the molecules and each atoms which makes the change in state from hot to cold and cold to hot......hope this helps uhh ?

ANSWER

Ise join krne ke liye google meet app download kijiye phir ise join. KIJIYE

Posted by Itachi Uchiha ? 5 years, 2 months ago

CBSE > Class 10 > Science

3 answers

Muskan Sharma 5 years, 2 months ago

Itachi Uchiha ? 5 years, 2 months ago

Numa Khan 5 years, 2 months ago

ANSWER

To join the meeting on Google Meet, click this link: https://meet.google.com/uzk-pnje-gvv Or open Meet and enter this code: uzk-pnje-gvv...........this is link is a demo for students which join us so plzz only one time try it....

Posted by Itachi Uchiha ? 5 years, 2 months ago

CBSE > Class 10 > Science

2 answers

Itz Raman Here ☺ 5 years, 2 months ago

morning ... mein pdoo

Itachi Uchiha ? 5 years, 2 months ago

To join the meeting on Google Meet, click this link: https://meet.google.com/uzk-pnje-gvv Or open Meet and enter this code: uzk-pnje-gvv

ANSWER

How do airplanes stay in the air?

Posted by Muskan Sharma 5 years, 2 months ago

CBSE > Class 10 > Science

1 answers

Vijay Kumar 5 years, 2 months ago

Four forces keep an airplane in the sky. They are lift ,weight, thrust and drag. Lift pushes the airplane up. The way air moves around the wings gives the airplane lift.

ANSWER

What is biochemical oxidation of organic compound in body

Posted by Sudhanshu Singh 5 years, 2 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

Chemistry chapter 4 class 10 Why covalent compounds are poor conductors of electricity?

Posted by Neha Dhiman 5 years, 2 months ago

CBSE > Class 10 > Science

4 answers

Shruti Janghu 5 years, 2 months ago

They do not forms the ions (which enhances the conductivity) Only the sharing of electrons occurs there which do not produces free electrons.

Itachi Uchiha ? 5 years, 2 months ago

Best channel for study chemistry is learnohub 9 th - 10th....

King Adithya H M... 5 years, 2 months ago

covalent compound are formed on a basic of sharing electron then the electrons have shared within the bond, there is no electron available to conduct electricity But it is the only non metals compounds that can conduct electricity

Sakshi Jagtap 5 years, 2 months ago

ANSWER:- because they form covalent bonds, and they do not give rise to free electrons because all electrons are used to create the covalent bond.....hope it helps uhh?

ANSWER

Leaves of a potted plant are coating with the Vaseline to block the stomata will this plant remain healthy for long ?state the three reason for your answer?

Posted by Jatin Verma 5 years, 2 months ago

CBSE > Class 10 > Science

2 answers

Nishanth J. Gowda 5 years, 2 months ago

Sakshi Jagtap 5 years, 2 months ago

No, plant would not stay healthy. 1. Plant will not get carbon dioxide for photosynthesis...... 2. Plant will not get oxygen for respiration..... 3. Plant will not get water and minerals due to stoppage of transpiration..... Hope it helps uhh?...

3Thank You

ANSWER

Explain the machnism of breathing in human beings

Posted by Jatin Verma 5 years, 2 months ago

CBSE > Class 10 > Science

1 answers

Sakshi Jagtap 5 years, 2 months ago

The mechanism of breathing involves two main processes: inspiration and expiration. Inspiration occurs when the diaphragm and the external intercostal muscles contract. ... The contraction or relaxation of muscles around the lungs changes the entire volume of air inside the lungs, and so does the pressure.....hope this helps uhh?

3Thank You

ANSWER

The image of an object formed by a mirror is real, inverted and is of magnification -1. If the image is at the distance of 30cm from the mirror, where is the object placed ? Find the position of image if the object is now moved 20cm towards the mirror. What is the nature of image obtained ? Justify your answer with help of ray diagram.

Posted by Sandeep Suman 5 years, 2 months ago

CBSE > Class 10 > Science

1 answers

Shobha Kumari 5 years, 2 months ago

(A) m=-1 u=? v=-30cm We know that m=-v/u -1=-(-30)/u u=-30 An object should be place at distance of 30 cm in front of mirror. Now, 1/u+1/v=1/f -1/30-1/30=1/f =-1-1/30=1/f =-2/30=1/f =-1/15=1/f =f=-15cm (b) u=-20cm f=-15cm We know that 1/u+1/v=1/f =-1/20+1/v=-1/15 =1/v=-1/15+1/20 =1/v=-4+3 /60 =1/v=-1/60 =v=-60 Hence,the position of image is at distance of 60 cm in front of mirror.since the image is form negative, so nature of image is real and inverted.