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What are pothosintesis

Posted by Varsha S. V 5 years, 4 months ago

4 answers

Prakriti ... 5 years, 4 months ago

A process in which plants takes carbon dioxide and sunlight from the atmosphere and minerals and water from root to make there own food for their growth is known as photosynthesis ❤?❤?❤Høpə iť mæý həłp ýœů ❤?❤?❤

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Kritee Kumari 5 years, 4 months ago

The process by which the plants makes their own food by the help of sunlight, water and chlorophyll and in the presence of oxygen and carbon dioxide.

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Poonam Paul 5 years, 4 months ago

Photosynthesis is the process of plants for making their own food with the help of sunlight, water and chlorophyll.

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Omkar Bhongale 5 years, 4 months ago

It is photosynthesis

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ANSWER

Please explain how to balance equation

Posted by Akanksha _511 5 years, 4 months ago

CBSE > Class 10 > Science

2 answers

Gaurav Seth 5 years, 4 months ago

How to balance a chemical equation

We take the reaction of formation of water.

H₂+ O₂--> H₂O (unbalanced equation for formation of water)

This equation can be balanced by using certain steps as mentioned below.

Step I: list the number of atoms of each element present on both sides of arrow.

	Reactant	Product
H	2	2
O	2	1

Step II: Begin balancing with the compound having maximum number of atoms. Following this rule we select H2O. Here there are 2 oxygen atoms on the reactant side but only 1 oxygen atom on the product side. So equation is unbalanced. In order to balance we need to do following step.

	Reactant	Product
Initial oxygen atom	2	1
To balance	2	1 X 2

So the equation stands out to be

H₂+ O₂ --> 2H₂O

Step III: After balancing oxygen the equation is H₂+ O₂à 2H₂O. So now we need to balance hydrogen atom.

	Reactant	Product
Initial hydrogen atom	2	4
To balance	2 X 2	4

So the final equation stands out to be

2H₂+ O₂--> 2H₂O

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Khush Kaur 5 years, 4 months ago

U can use trial and error method

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ANSWER

Fe2O3+2Al=Al2O3+2Fe

Posted by Binod Kumar 5 years, 4 months ago

CBSE > Class 10 > Science

1 answers

Gaurav Seth 5 years, 4 months ago

This reaction is an example of a displacement reaction.

Here Aluminum is more reactive metal than Fe. Therefore Al will displace Fe from its oxide. This type of chemical reactions in which one of the element displace another is called as displacement reaction. Here less reactive metal is displaced by more reactive metal. Since one-time displacement is occurring, therefore, it is called as single displacement reaction.

Displacement reaction is applicable in both non-metals and metals.

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ANSWER

What is electricity ? (concept) and potential difference ?

Posted by Krishn Kant Shridhar 5 years, 4 months ago

CBSE > Class 10 > Science

3 answers

Khush Kaur 5 years, 4 months ago

Electricity is a study of charges . Potential difference is work done required to bring a charge from one point to another .

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Anamika Kumari 5 years, 4 months ago

Electricity means to study about current , charge , circuit etc

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Piyush Jangid 5 years, 4 months ago

Electricity is a flow of current .and the relationship of voltmeter and ampere from one point to another point

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Why red blood cell having curved surface

Posted by Adarsh Garg 5 years, 4 months ago

CBSE > Class 10 > Science

1 answers

Namrata Jindal 5 years, 4 months ago

To maximize surface area

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ANSWER

Life process important key points

Posted by Adarsh Garg 5 years, 4 months ago

CBSE > Class 10 > Science

3 answers

Tejasvini S 5 years, 4 months ago

It's is in this app itself. Go to revision notes of this lesson.

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Sathwik Reddy Lakkireddy 5 years, 4 months ago

Ingestion Respiration Digestion Egestion Excretion

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Daniya Khan 5 years, 4 months ago

Are itne lambe chapter ke key points yaha par likhenge to adha din nikal jayega

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ANSWER

What is the need of two systems for control and coordination?

Posted by Shreya Kumari 5 years, 4 months ago

CBSE > Class 10 > Science

1 answers

Gaurav Seth 5 years, 4 months ago

Nervous system and endocrine system are responsible for control and coordination of complex, multicellular human body with multiple organ systems of complex functioning. Endocrine secretions (hormones) regulate proper growth and development and functioning of different organs. Nervous system enables us to respond to our surroundings and to perform daily activities. It does so by sensing external and internal stimuli followed by a relay of sensory information to CNS (Central Nervous System) for processing and generation of motor output, i.e., involuntary and voluntary actions.

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ANSWER

Prepare a note on biomagnification.

Posted by Shreya Kumari 5 years, 4 months ago

CBSE > Class 10 > Science

1 answers

Gaurav Seth 5 years, 4 months ago

biomagnification is the increase in concentration of the persistant toxicant at successive trophic levels. It happens because a toxic substance accumulated by an organism cannot be metabolised or excreted and is thus passed onto the next higher trophic level.

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Name two non-metals which are commonly available and name their two important properties

Posted by Mohit Vilangil 5 years, 4 months ago

CBSE > Class 10 > Science

4 answers

Mohit Vilangil 5 years, 4 months ago

Thank you

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Ishika Bains 5 years, 4 months ago

Nitrogen and carbon

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Daniya Khan 5 years, 4 months ago

Nitrogen and carbon Nitrogen :- it insert in nature Carbon :- it is allotropes

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Darsh Patel 5 years, 4 months ago

Nitrogen can be used as food preservative and in bulbs because of its inert nature. Carbon has various allotropes like amorphous carbon, diamond and graphite just to mention a few.

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ANSWER

Dilution of acid

Posted by Fathima Hanan 8 5 years, 4 months ago

CBSE > Class 10 > Science

1 answers

Namrata Jindal 5 years, 4 months ago

Add acid to water ?. Don't add water ? to acid

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ANSWER

Differentiate unisexual and bisexual with example

Posted by Sowjanya Sundar 5 years, 4 months ago

CBSE > Class 10 > Science

2 answers

Gaurav Seth 5 years, 4 months ago

Unisexual reproduction	Bisexual reproduction
Organism posses either male and female organs, are unisexual	Organism posses both male and female organs, are unisexual
Flower that contains either Stamen (male * organ) or pistil (female * organ).	Flower that contains both Stamen (male * organ) and pistil (female * organ). In this case reproduction takes place through self pollination and cross pollination

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Yogita Ingle 5 years, 4 months ago

<th>Unisexual Flower</th> <th>Bisexual flower</th>

Flowers which have only one *** organ (either stamen or carpel) are known as unisexual flowers.	Flowers which have both *** organs (stamen and carpel) are known as bisexual flowers.
Example: flowers of papaya, watermelon.	Example : flowers of hibiscus, mustard plants.

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Why do electron move freely in metal

Posted by Aryan Singh 5 years, 4 months ago

CBSE > Class 10 > Science

2 answers

Richa Shree 5 years, 4 months ago

Because metals have large atoms than non metals

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Yogita Ingle 5 years, 4 months ago

Metals are an excellent conductor of electricity and heat because the atoms in the metals form a matrix through which outer electrons can move freely. Instead of orbiting their respective atoms, they form a sea of electrons that surround the positive nuclei of the interacting metal ions. The electrons then move freely throughout the electron sea.

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ANSWER

Can we have the answers of all the ques papers.?

Posted by Aadyasha Rajput 5 years, 4 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

Why are decomposition reaction called the opposite of combination reaction? Write equation for these

Posted by Darsh Patel 5 years, 4 months ago

CBSE > Class 10 > Science

2 answers

Niharika Jorwal 5 years, 4 months ago

In a decomposition reaction , a single substance break down into two or more substance while in a combination reaction , two or more substance react to produce one substance . Therefore , decomposition reaction are called opposite of combination reactions. Example of decomposition reaction - NH4Cl --> HCl + NH3 Example of combination reaction - CaO + Co2 --> CaCO3

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Gaurav Seth 5 years, 4 months ago

In a combination reaction two or more substances are combined to form new substance while in the decomposition reaction one substance decomposes into two or more substances. Hence, the decomposition reactions are called opposite of combination reactions.

Decomposition reaction <i>CaCO₃ (s) ⇨ CaO (s) + CO₂ (g)</i>

Combination reaction <i>H₂ (g) + Cl₂ ⇨ 2HCl (g)</i>

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ANSWER

How chemical reaction can be classified on the basis of chemical reaction

Posted by Darsh Patel 5 years, 4 months ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 5 years, 4 months ago

Chemical reactions can be classified in following types:

Combination Reaction
Decomposition Reaction
Displacement Reaction
Double Displacement Reaction
Oxidation and Reduction Reaction

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Gaurav Seth 5 years, 4 months ago

The basis for different types of reactions is the product formed, the changes that occur, the reactants involved and so on. Different types of reactions are

Combustion reaction
Decomposition reaction
Neutralization reaction
Redox Reaction
Precipitation or Double-Displacement Reaction
Synthesis reaction

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ANSWER

Describe the structure and functioning of nephron?

Posted by Naman Sharma 5 years, 4 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 4 months ago

Structure of a Nephrons:

Nephrons are the basic filtering units of kidneys.
Each kidney possesses large number of nephrons, approximately 1-1.5 million.
The main components of the nephron are glomerulus, Bowman’s capsule, and a long renal tubule.

Functioning of a Nephron:

The blood enters the kidney through the renal artery, which branches into many capillaries associated with glomerulus.
The water and solute are transferred to the nephron at Bowman’s capsule.
In the proximal tubule, some substances such as amino acids, glucose, and salts are selectively reabsorbed and unwanted molecules are added in the urine.
The filtrate then moves down into the loop of Henle, where more water is absorbed.
From here, the filtrate moves upwards into the distal tubule and finally to the collecting duct. Collecting duct collects urine from many nephrons.
The urine formed in each kidney enters a long tube called ureter. From ureter, it gets transported to the urinary bladder and then into the urethra.

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ANSWER

Posan kya he

Posted by Pankaj Pandey 5 years, 4 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

What are stomata?Mention its functions.

Posted by Gayathri Gayu 5 years, 4 months ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 5 years, 4 months ago

When a leaf is examined under the microscope, we observe many tiny pores, which are collectively called stomata.
Functions of Stomata

The major function of stomata is the exchange of gases by taking carbon dioxide from the atmosphere and giving out oxygen that is used by human beings and animals. They help in photosynthesis and transpiration.

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Anupama ?? 5 years, 4 months ago

Stomata are the small pores present mostly in the leaves as well as in the soft and hairy stems . The function of stomata is to exchange the gases. These are surrounded by two gaurd cells,as when required these opens to absorb gases and release gases.

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ANSWER

write the energy, changing during lightning⚡???

Posted by Charvi Sangwan 5 years, 4 months ago

CBSE > Class 10 > Science

1 answers

Anupama ?? 5 years, 4 months ago

Kinetic energy into heat and light energy.

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ANSWER

Determine the phone type for each genotype using the information provided: Yellow body is dominant to blue: YY: YY: yy: Square shape is dominant to round: SS: Ss: ss:

Posted by Sri Pranathi 5 years, 4 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

Write the position , size and nature of images formed by concave mirror when object is placed in different position . {consider all 6 positions given in the book} * {consider all 6 positions given in the book}

Posted by Krishna Sharma 5 years, 4 months ago

CBSE > Class 10 > Science

3 answers

Anupama ?? 5 years, 4 months ago

Ya of course it is given in book clearly.

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Gaurav Seth 5 years, 4 months ago

Object at infinity
Object between infinity and centre of curvature (C)
Object at centre of curvature (C)
Object between centre of curvature (C) and Principal focus (F)
Object at Principal Focus (F)
Object between Principal Focus (F) and Pole (P)

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Object at infinity:

Since parallel rays coming from the object converge at principal focus, F of a concave mirror; after reflection. Hence, when the object is at infinity the image will form at F.