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Kanish 0358_09 4 years, 9 months ago

respiration is the process by which glucose is broken to release energy in the presence of oxygen. where as respiration is the process by which our body takes in oxygen and gives out carbon dioxide. hope it helps:)

ANSWER

How thermal power plant work

Posted by Fahim Ansari 4 years, 9 months ago

CBSE > Class 10 > Science

2 answers

Kapil Kalal 4 years, 9 months ago

Traditional

Chehak Kohli 4 years, 9 months ago

Traditional thermal power plants: also called combustion power plants, they operate with energy produced by a steam boiler fueled by coal, natural gas, heating oil, as well as by biomass. The steam activates a turbine which, in turn, drives an alternator to produce electricity.

ANSWER

2g of ferrous sulphate crystals were heated in a hard glass test tube and observations recorded 1). What type of odour is observed on heating ferrous sulphate crystals? 2). Name the product obtained on heating ferrous sulphate crystal? 3). What type of reaction is taking place?

Posted by Harshal Joshi 4 years, 9 months ago

CBSE > Class 10 > Science

2 answers

Puja Sahoo 4 years, 9 months ago

1) The odour of burning sulphur is observed 2)We get ferric oxide (Fe2O3)and sulphur dioxide ( So2) and sulphur trioxide (So3) 3) Decomposition reaction is takes place

Chehak Kohli 4 years, 9 months ago

1) The odour of burning sulphur is observed. 2) Ferric oxide, sulphur dioxide and sulphur trioxide are obtained. 3) Decomposition reaction is taking place.

ANSWER

Magnetic field lines are directly proportional to _________?

Posted by Harshal Joshi 4 years, 9 months ago

CBSE > Class 10 > Science

5 answers

Saroj Kumar 4 years, 9 months ago

Strenght of the current

Armaan Mundlia 4 years, 9 months ago

Current flowing

Himanshu Mishra 4 years, 9 months ago

Current

Aditi Manro 4 years, 9 months ago

Current and no. of turns

#Techy Mahesh 4 years, 9 months ago

I(current) & cross section area

ANSWER

What is self induction?

Posted by Harshal Joshi 4 years, 9 months ago

CBSE > Class 10 > Science

1 answers

Chehak Kohli 4 years, 9 months ago

The induction of an electromotive force in a circuit when the current in that circuit is varied is known as self induction.

ANSWER

What is emulsification? Explain

Posted by Harshal Joshi 4 years, 9 months ago

CBSE > Class 10 > Science

3 answers

Harshal Joshi 4 years, 9 months ago

Thx.......

Ranvijay Kumar 4 years, 9 months ago

The process of chemical break down of fats into its simplest form with the help of bile juice secreted by liver is called emulsification.

Aditi Manro 4 years, 9 months ago

The process of chemical break down of fats into its simplest form with the help of bile juice secreted by liver is called emulsification.

ANSWER

A lens which is always form erect image has focal length 20 cm if the object is kept at the distance of 10cm then where will be the image formed?

Posted by Harshal Joshi 4 years, 9 months ago

CBSE > Class 10 > Science

1 answers

Ayush Agrawal 4 years, 9 months ago

Left side of the lens

ANSWER

Which is used in tasty pakoras

Posted by Manish R 4 years, 9 months ago

CBSE > Class 10 > Science

5 answers

Rudraksh Rai Udaiwal 4 years, 9 months ago

Baking soda

Ayush Agrawal 4 years, 9 months ago

Baking soda

Abhijot Bedi 4 years, 9 months ago

NaHCO3(sodium bicarbonate) which in simple words we call baking soda

Chehak Kohli 4 years, 9 months ago

Yes, you are right. Baking soda makes the pakoras light and fluffy.

Manish R 4 years, 9 months ago

Baking soda right

ANSWER

What happens when copper powder is strongly heated in presence of oxygen?

Posted by Harshal Joshi 4 years, 9 months ago

CBSE > Class 10 > Science

2 answers

Arun Pandey 'B' 4 years, 9 months ago

CuO

Saurabh Singh 4 years, 9 months ago

It produces it's oxide

ANSWER

Why is it said that ''sexual reoroduction promotes diversity of characters in the offspring''?

Posted by Himanshu Mishra 4 years, 9 months ago

CBSE > Class 10 > Science

1 answers

Saurabh Singh 4 years, 9 months ago

ᴛʜɪs ɪs sᴏ ʙᴇᴄᴀᴜsᴇ ɪɴ ᴛʜɪs ᴍᴏᴅᴇ ɴᴇᴡ ɢᴇɴᴇʀᴀᴛɪᴏɴ ɢᴇᴛ ??-?? ᴄʜᴀʀᴀᴄᴛᴇʀ ғʀᴏᴍ ʙᴏᴛʜ ᴘᴀʀᴇɴᴛs ʟᴇᴀᴅɪɴɢ ᴠᴀʀᴀᴛɪᴏɴ ɪɴ ɴᴇᴡ ɢᴇɴᴇʀᴀᴛɪᴏɴ

ANSWER

Explain why there are two circuit one for hIgh power appliances and other for low power rating power appliances

Posted by For Me 4 years, 9 months ago

CBSE > Class 10 > Science

1 answers

Saurabh Singh 4 years, 9 months ago

ʜɪɢʜ ᴘᴏᴡᴇʀ ᴅᴇᴠɪᴄᴇs ʀᴇǫᴜɪʀᴇ ʟᴀʀɢᴇ ᴀᴍᴏᴜɴᴛ ᴏғ ᴘᴏᴡᴇʀ ᴡʜɪʟᴇ ʟᴏᴡ ᴘᴏᴡᴇʀ ᴅᴇᴠɪᴄᴇ ʀᴇǫᴜɪʀᴇ ʟᴏᴡ ᴘᴏᴡᴇʀ . ɪғ ʙᴏᴛʜ ᴀʀᴇ ᴄᴏɴɴᴇᴄᴛᴇᴅ ɪɴ ᴀ sɪɴɢʟᴇ ᴄɪʀᴄᴜɪᴛ ᴛʜᴇʀᴇ ᴍᴀʏ ʙᴇ ᴏᴠᴇʀ ʟᴏᴀᴅ ʟᴇᴀᴅɪɴɢ ᴅᴀᴍᴀɢᴇ ᴛᴏ ᴅᴇᴠɪᴄᴇs

ANSWER

How it can be proved that the basic structure if the modern periodic table is based on the electronic configuration of atom of different elements?

Posted by Himanshu Mishra 4 years, 9 months ago

CBSE > Class 10 > Science

1 answers

Chehak Kohli 4 years, 9 months ago

For example, if the electronic configuration of an element is 2, 8, 1 it means that the element belongs to group 1 and 3rd period. So, the modern periodic table is based on the electronic configuration of the different elements.

ANSWER

What is Biomagnification? Also gives example.

Posted by Aayush Rawat 4 years, 9 months ago

CBSE > Class 10 > Science

5 answers

Manvi Sharma 4 years, 9 months ago

Biological magnification is the increase in concentration of harmful chemicals in the body of a living organism at each trophic level in the food chain

Gunn Bhatia 4 years, 9 months ago

the process by which the toxic and harmful substances into a foodchain and then get concentrated in body of living organisms at each successive level is called biological magnification or biomagnification.

Rithika Gautam 4 years, 9 months ago

the accumulation of a particular substance in the body of the organisms at different trophic levels of a food chain

Rishi Singh 4 years, 9 months ago

example of biomagnification is the accumulation of insecticide DDT which gets accumulated in zooplanktons. Small fishes consume these zooplanktons

3Thank You

Rishi Singh 4 years, 9 months ago

the accumulation of a particular substance in the body of the organisms at different trophic levels of a food chain

3Thank You

ANSWER

After self polination in pea plants with round ,yellow seeds, following types of seeds were obtained by Mendel

Posted by Anshi Maharaj 4 years, 9 months ago

CBSE > Class 10 > Science

2 answers

Gunn Bhatia 4 years, 9 months ago

1. round and yellow seeds 2. round and green seeds 3. wrinked and yellow seeds 4. wrinkled and green seeds this was in the ratio 9:3:3:1

Rithika Gautam 4 years, 9 months ago

1. Perfect Big & Round Seeds 2. Perfect Big & Round Seeds Round with some deformation 3. Perfect Big & Round Seeds Round with some deformation Deformed Seed. 4.Perfect Big & Round Seeds Round with some deformationDeformedSeedSmall & deformed seed.

ANSWER

Why there is no circulatory system in unicellular organisms?

Posted by Harshal Joshi 4 years, 9 months ago

CBSE > Class 10 > Science

2 answers

Shreyas Sharma 4 years, 9 months ago

In unicellular organism, there is only one cell which is in direct contact with surrounding environment. So, it can fulfill its need by simple diffusion. Hope this is correct. :3

Rishi Singh 4 years, 9 months ago

because oxygen and carbon dioxide diffuse directly between their body tissues and the external environment.

3Thank You

ANSWER

List any two observations when lead nitrate is heated

Posted by Harshal Joshi 4 years, 9 months ago

CBSE > Class 10 > Science

1 answers

Rithika Gautam 4 years, 9 months ago

1. Two gases nitrogen dioxide and oxygen are evolved. 2.this is a decomposition reaction

ANSWER

''Energy flow in a food chain is unidirectional'' Justify this statement.Explain how the pesticides enter a food chain and subsequently get into our body.

Posted by Himanshu Mishra 4 years, 9 months ago

CBSE > Class 10 > Science

2 answers

Himanshu Mishra 4 years, 9 months ago

Thanks mere bhai

Gunn Bhatia 4 years, 9 months ago

energy flow is unidirectional that is flows in one direction. eg. energy absorbed by plants from the sun donot revert back to the sun

ANSWER

How much does resistance in a wire change if diameter is doubled.

Posted by A K47 4 years, 9 months ago

CBSE > Class 10 > Science

3 answers

Vaibhav Pandey 4 years, 9 months ago

1/2

Rithika Gautam 4 years, 9 months ago

1/4

Shivam Verma 4 years, 9 months ago

High

ANSWER

Reaction of mno2 with aluminium

Posted by ?????? ????? 4 years, 9 months ago

CBSE > Class 10 > Science

1 answers

Khushi 4 years, 9 months ago

3MnO2 + 4Al → 3Mn + 2Al2O3 + heat

ANSWER

Explain the evolution of insects

Posted by Koushalya Naik 4 years, 9 months ago

CBSE > Class 10 > Science

3 answers

Rithika Gautam 4 years, 9 months ago

Insects may have evolved from a group of crustaceans. The first insects were landbound, but about 400 million years ago in the Devonian period one lineage of insects evolved flight, the first animals to do so. Most extant orders of insects developed during the Permian period. Higher classification: Hexapoda

Tejasvini S 4 years, 9 months ago

Insects may have evolved from a group of crustaceans. The first insects were landbound, but about 400 million years ago in the Devonian period one lineage of insects evolved flight, the first animals to do so. ... Most extant orders of insects developed during the Permian period. Higher classification: Hexapoda

Krishna Sharma 4 years, 9 months ago

Nlljvg

ANSWER

What is importance of decomposer

Posted by Abhijot Bedi 4 years, 9 months ago

CBSE > Class 10 > Science

2 answers

Rithika Gautam 4 years, 9 months ago

The decomposers help in decomposing the dead bodies of plants and animals and hence act as cleansing agents of environment

Tejasvini S 4 years, 9 months ago

They perform a valuable service as Earth's cleanup crew. Without decomposers, dead leaves, dead insects, and dead animals would pile up everywhere. Imagine what the world would look like! More importantly, decomposers make vital nutrients available to an ecosystem's primary producers—usually plants and algae.

ANSWER

if in your house 3/10 w bulbs work for 10 hours daily with a 60 watt and works of and 20 w . if the rate of w is 5 per kilowatt , what will be the total cost for 30 days

Posted by Prasun Pal 4 years, 9 months ago

CBSE > Class 10 > Science

1 answers

Ankit Singh 4 years, 9 months ago

G 6

Case-based Question -1 Read the following and answer any four questions: Salt of a strong acid and strong base is neutral with a pH value of 7. NaCl common salt is formed by a combination of hydrochloride and sodium hydroxide solution. This is the salt that is used in food. Some salt is called rock salts bed of rack salt were formed when seas of bygone ages dried up. The common salt thus obtained is an important raw material for various materials of daily use, such as sodium hydroxide, baking soda, washing soda, bleaching powder. Which of the following does not form an acidic salt? Phosphoric acid Carbonic acid Hydrochloric acid Sulphuric acid Which of the following salts has no water of crystallization? Blue vitriol Washing soda Baking soda Gypsum The formula of baking soda is K2CO KHCO3 NaHCO3 Na2CO3 Which of the following is treated with chlorine to obtain bleaching powder CaSO4 Ca(OH)2 Mg(OH)2 KOH Which of the following salt is used for removing the permanent hardness of water Washing soda Baking soda Bleaching powder NaOH Case-based Question -2 Read the following and answer any four questions: In resistance for a system of the resistor, there are two methods of joining the resistors together as shown below It showed an electric current in which 3 resistors having resistor R1, R2 and R3 respectively are join end to end i.e series. While the combination of the resistor in which 3 resistors connected together which point X and Y are said to be parallel. The total potential difference across a combination of a resistor in series is equal to V1 + V2 + V3 V1 – V2 +V2 V1 + V2 None of these In a series combination of resistor, the current is same at every point of the circuit different at every point of the circuit zero can not be determined The electrical energy disputed in the resistor is given by W = VIT W = VIR W = RIT W = RT If 5 resistor, each of value 0.2 ohm are connected in series what will be the resultant resistance 1 ohm 10 ohm 6 ohm 8 ohm The figure given below shows three resistors. Their combined resistance is: 16 ΩΩ 14 ΩΩ 203Ω203Ω 152Ω152Ω Case-based Question -3 Read the following and answer any four questions: In the electrolytic refining of copper. The electrolyte is a solution of acidified copper sulphate. There are an anode and cathode. Refining is carried out by passing an electric current. The anode is ________. pure strips impure copper refined copper none of these Anode mud consists of: insoluble impurities soluble impurities pure metal impure metal Which of the following are refined electrolytically: (A) Au, (B) Cu, (C) Zn, (D) K A and B B and C A, B and C B, C and D On passing, electric current Cu is deposited on: cathode anode bottom of cathode bottom of anode Which one of the following four metal would be displaced from the solution of its salt by the other three metal? Zn Mg Cu Ag

ANSWER

Posted by Prabhat Arela 4 years, 9 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

Differentiate between fragmentation and regeneration

Posted by Khushi Sharma 4 years, 9 months ago

CBSE > Class 10 > Science

3 answers

Rithika Gautam 4 years, 9 months ago

Fragmentation is breaking up of the body of a simple multicellular organism into two pieces on maturing,each of which subsequently grows to form a complete new organism ,is called fragmentation. Regeneration is the process of getting back a full organism from its body parts is called regeneration

Tejasvini S 4 years, 9 months ago

Fragmentation is a method of asexual reproduction where an organism reproduces by the process of splitting into fragments and each fragment grows into an individual organism. Regeneration, on the other hand, happens when an organism regrows certain parts or limbs which is lost due to predation.

Anshdeep Singh 4 years, 9 months ago

buy all in one science book the you can get your all answers in that

ANSWER

What is currnt

Posted by Kunal Kumar 4 years, 9 months ago

CBSE > Class 10 > Science

5 answers

Rithika Gautam 4 years, 9 months ago

The flow of electron in the conductor is known as electric current . it's SI unit is Ampere and it is denoted by I.

Chandresh Tiwari 4 years, 9 months ago

The flow of electron in the conductor is known as electric current . it's SI unit is Ampere and it is denoted by I.

Kedar Thakur 4 years, 9 months ago

The rate of flow of electrons

Aman Raj 4 years, 9 months ago

The rate of flow of electrons

Aparna Kumari 4 years, 9 months ago

Flow of electons

ANSWER

Why is diffusion insufficient to meet the oxygen requirment of multicultural organisms like humans?

Posted by Meet Rathod__ 4 years, 9 months ago

CBSE > Class 10 > Science

4 answers

Manvi Sharma 4 years, 9 months ago

Because the volume of multicellular organisms is very high In the process of diffusion the oxygen is transported to every cell which is a very slow process According to some scientists if the Oxygen transported in human body by the process of diffusion then it will take a time of 3 years

Rithika Gautam 4 years, 9 months ago

As in multicellular organisms,all the cell are not in direct contact with environment,simple diffusion does not meet the requirements of all body cells to get sufficient oxygen

Aparna Kumari 4 years, 9 months ago

Because multicellular organisms do not have direct contact with the environment

Bhavana Garg 4 years, 9 months ago

As in multicellular organisms,all the cells are not in direct contact with enviourment,simple diffusion does not meet the requirement of all body cells to get sufficient oxygen