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What is doameter of the earth

Posted by Daljit Singh 7 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Vãkúl Gâur 7 years, 1 month ago

12,742 km

ANSWER

Explain method of making wool

Posted by Sneh Lata 7 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 5 years, 7 months ago

The major steps necessary to process wool from the sheep to the fabric are: shearing, cleaning and scouring, grading and sorting, carding, spinning, weaving, and finishing. The different processes involved in wool production are shearing, scouring, grading, dyeing, and drying. The process of removal of the fleece from an animal is called shearing. Sheep are usually shorn annually in the spring/summer months. Shearing is done with a manual razor and blade, or with special clippers. The various steps for processing fibres into wool are as follows: Shearing: The fleece of the sheep along with a thin layer of skin is removed from its body. Scouring: The sheared skin with hair is thoroughly washed in tanks to remove grease, dust and dirt. The fibres are straightened, combed and rolled into yarn.

ANSWER

Make list of 5 animals having large ears and cause

Posted by Sahil Kaushik 7 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Shivani Meher 7 years, 1 month ago

Elephant, bat,owl ,the bat eared fox , rabbit

Shivani Meher 7 years, 1 month ago

Elephant

ANSWER

Protected Areas For Conservation table

Posted by Neha Kanwal 7 years, 1 month ago

CBSE > Class 08 > Science

0 answers

ANSWER

What are the important question for natural science

Posted by Rajhaviknesh Viki 7 years, 1 month ago

CBSE > Class 08 > Science

0 answers

ANSWER

Gravitation force is present between you and any building. Why yoh are not pulled towards it then?

Posted by Souraabh Rayeen 7 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Soumya Pandey 7 years, 1 month ago

Because gravity depends on mass of an object..... mass of the building is less than earth ... so that's why we are not pulled towards it

Anu S 7 years, 1 month ago

. gravity is something that exists between every living or non living organism......but we must remember that it is the weakest force of all......which is why we are not being sticked together

ANSWER

What is an ebonite rod ?

Posted by Shreya Yadav 7 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years, 1 month ago

Ebonite rod is a rod made by special vulcanized rubber. When rubbed with animal fur it gets charged and negative charge remains in the rod, fur gets positive charge.
It is used to prove static electricity i n class rooms![enter image

ANSWER

What is the scientific name of human and which species has a human

Posted by Shivam Kumar 7 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Soumya Pandey 7 years, 1 month ago

Scientific name of humana is homosapiens & they belong to mammals species also homonidae family

V Siva 7 years, 1 month ago

Scientific name of human is Homo sapiens.

ANSWER

How many types of micro organism?

Posted by Vishal Kumar 7 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Tanuuuu Varshney 7 years, 1 month ago

There are 5 types of micro organisms - 1) bacteria 2) virus 3) protozoa 4) fungi 5) algae

ANSWER

What is curd?

Posted by Vishal Kumar 7 years, 1 month ago

CBSE > Class 08 > Science

4 answers

Himanshu Kumar 7 years, 1 month ago

curd is made up of milk,it is produced from bacteria named lactobacillus . the lactobacillus help in the formation of the curd this is diary product

Rajhaviknesh Viki 7 years, 1 month ago

Yes

Anil Kumar Reddy 7 years, 1 month ago

Curd is a biproduct of milk. It is made up of bacteria named lacto bacillus.

Vishal Kumar 7 years, 1 month ago

Curd is made up of milk with the help of bacteria

ANSWER

What is acide rain

Posted by Krishna Sharma 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Siddharth Mahto 7 years, 2 months ago

The rain which contains more acids than normal is called acid rain. It contains higher amount of sulphuric acid , carbonic acid and nitric acid which are caused due to the gases like sulphur dioxide , carbon dioxide ,and nitrogen dioxide respectively caused by pollution (various gases emitted by factories) .

ANSWER

What is asexual reproduction???

Posted by Manomay Goyal 7 years, 2 months ago

CBSE > Class 08 > Science

4 answers

Gagan Deep 7 years, 1 month ago

Asexual reproduction is a process by which the organism reproduces on its own without the help of another individual. It involves only a single parent

Rajhaviknesh Viki 7 years, 1 month ago

Yes

Shravan Raut 7 years, 2 months ago

The reproduction in which only single parent is involved is called asexual reproduction. Example is hydra

Anurag Jhajharia 7 years, 2 months ago

Asexual reproduction mean that only one parents is involved

ANSWER

Please make a simple sketch of an animal cell

Posted by Keerthan Jogi 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Gagan Deep 7 years, 1 month ago

https://cdn.pixabay.com/photo/2012/05/07/14/58/cell-48542_960_720.png Type this in chrome and search

ANSWER

Explain why sportsman use a shoe with spikes?????

Posted by Nidhiya Naseer S 7 years, 2 months ago

CBSE > Class 08 > Science

4 answers

Anurag Jhajharia 7 years, 2 months ago

To reduce friction and make easily to run

Manomay Goyal 7 years, 2 months ago

To get a better grip of their opponents

Shrish Gupta 7 years, 2 months ago

To get a better grip with the ground as it would increase friction

Siddharth Mahto 7 years, 2 months ago

To increase friction and for better grip

ANSWER

What is the difference between national parks ,zoo and wildlife sanctuary?

Posted by Sansita Das 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years, 1 month ago

National parks are the reserved places used to protect flora and fauna of an area. National parks are large and diverse reserves which help in protection of different ecosystems. These can protect flora, fauna and many other aspects of the ecosystem. Different wild animals like snow leopard, clouded leopard, marbled cat, panda, black bear, blud sheep, wild ass, toucan, musk deer etc are protected from getting extinct.

Zoological parks are the areas where animals are kept in special enclosures or cages with restricted area. Zoological parks serve as an amusement places for public.these help in providing education about wildlife to children. They act as commercial aids of raising income by serving as tourist spots.

ANSWER

If a simple pendulum makes 20 oscillation in 4 seconds. What is it's frequency?

Posted by Yugansh Bhatia 7 years, 2 months ago

CBSE > Class 08 > Science

4 answers

Parwinder Singh 7 years, 1 month ago

5hz

Anurag Jhajharia 7 years, 2 months ago

5hz

Shrish Gupta 7 years, 2 months ago

5 Hz

Shivani Meher 7 years, 2 months ago

Number of oscillation=20 ,total time=4sec, time taken to complete one oscillation= 4/20= 0.2 sec ,frequency=1/time period ,1/1.2 =5

ANSWER

Mame some musical instruments

Posted by Sahil Yadav 7 years, 2 months ago

CBSE > Class 08 > Science

2 answers

Gagan Deep 7 years, 1 month ago

Sitar, violin, tabla, mridangam, harmoniam, flute, mouth organ, drum.

Shivani Meher 7 years, 2 months ago

Drum ?, flute , harmoniam

ANSWER

How friction help in chewing the food.

Posted by Bindu Shree Kori 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years, 1 month ago

Friction is even created between the teeth and the food which helps in chewing.

ANSWER

What is plasma membrane and cell wall

Posted by Kirthi B C Kirthi 7 years, 2 months ago

CBSE > Class 08 > Science

3 answers

Gagan Deep 7 years, 1 month ago

Plasma membrane protects the internal parts of plant cell. Cell wall is made up up of cellulose which protects the cells

Sansita Das 7 years, 2 months ago

Plsama membrane is a microscopic membrane of proteins that forms the external boundry of a cell. Cell wall is a lyer lying outside the plasma membrane in the plant cell

Siddharth Mahto 7 years, 2 months ago

Plasma membrane is the outet lining of the cell .It is the another name of cell membrane. Cell wall is the protective wall of cells it is only present in the plant cells .

ANSWER

what do you mean by reflaction of light

Posted by Aryan Pandey 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Ayisha Nidha 7 years, 2 months ago

The bouncing back of light when it falls on a smooth surface or an other surface is termed as reflection of light

ANSWER

Describe the process by which amoeba reproduces

Posted by Tejenidra Rajpurohit 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Anurag Jhajharia 7 years, 2 months ago

Asexual reproduction

ANSWER

WHAT IS DRAG ❓❓❓❓❔❔❔❔❔⚐

Posted by Saloni Gupta 7 years, 2 months ago

CBSE > Class 08 > Science

4 answers

Gagan Deep 7 years, 1 month ago

Frictional force opposes the motion of an object moving through a fluid such as air or water. This frictional force is known as drag.

Anurag Jhajharia 7 years, 2 months ago

Friction by liquid is known as drag

Siddharth Mahto 7 years, 2 months ago

Drag means the friction producedby liquids and gases . It is the another name for fluid friction.

Saloni Gupta 5 years, 9 months ago

the pressure exerted by liquids

ANSWER

What are cilia and flagela ? Write one similarity and one dissimilarity between the teo of them

Posted by Rimjhim Kumari 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years, 2 months ago

Cilia and flagella are projections from the cell. They are motile and designed either to move the cell itself or to move substances over or around the cell.Cilia are short and there are usually many (hundreds) cilia per cell. On the other hand, flagella are longer and there are fewer flagella per cell (usually one to eight).

ANSWER

Can light be reflect on a dull surface ? If not , how can we able to see a dull figure ?

Posted by Rakesh Kumar 7 years, 2 months ago

CBSE > Class 08 > Science

3 answers

Siddharth Mahto 7 years, 2 months ago

Dull surface don't reflect light nicely but it do .And also the light reflected by our eyes help us to see the same.

Saloni Gupta 7 years, 2 months ago

ABCDEFGHIJKLMNOPPQRSTUVWXYZ

Pranjal Kumar 7 years, 2 months ago

Everything that we can see can reflect light.everything reflect light but at different amounts

ANSWER

Why plant cells are more rigid than the animal cells

Posted by Rimjhim Kumari 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Siddharth Mahto 7 years, 2 months ago

That's because it contains cell walls

ANSWER

What do you meant by friction

Posted by Namanjot Kaur 7 years, 2 months ago

CBSE > Class 08 > Science

6 answers

Gagan Deep 7 years, 1 month ago

The force which opposes the is called friction.

Anurag Jhajharia 7 years, 2 months ago

Opposing force of motion is friction

Siddharth Mahto 7 years, 2 months ago

The force opposing tje the relative motion between the object and the surface is called friction.

Saloni Gupta 7 years, 2 months ago

force opposing push or pull

Rahul Rewar 7 years, 2 months ago

The force which opposes the relative motion between two surface in contact is called friction. The force of friction always opposes the applied force that may be push or pull

Ankur Tiwari 7 years, 2 months ago

The force acting opposite to the applied force ,may called friction

ANSWER

Why cell is called dtructural and functional unit of life?

Posted by Rimjhim Kumari 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Siddharth Mahto 7 years, 2 months ago

Because cell is the basic unit of life through which an organism is made and also all the functions of an organism is done inside the cell only.

ANSWER

What are the two fossil fuels

Posted by Mathu Nisha 7 years, 2 months ago

CBSE > Class 08 > Science

3 answers

Rahul Rewar 7 years, 2 months ago

Coal and natural gas

Rimjhim Kumari 7 years, 2 months ago

Coal and natural gas

Monika Patel 7 years, 2 months ago

Coal and petroleum

ANSWER

How do traits get expressed in plants and animals

Posted by Priyam Rajput 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years, 1 month ago

A trait in an organism results from the action of proteins (e.g., growth hormone in plants is a protein which is manufactured from a gene). Each protein is made by information from the genes for that protein. In the example of pea plant, there are two genes for plant height–‘T’ and ‘t’ ‘T’ is dominant over ‘t’. In a heterozygous plant (Tt), only the gene ‘T’ will be able to make proteins as it is dominant over the ‘t’ gene. This protein would be the growth hormone which will result in the plant being tall.

ANSWER

reproduction in animals . something to do answers

Posted by Nitish Patel 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 5 years, 7 months ago

The production of new organism from a single parent without the involvement of *** cells is called asexual reproduction. Hydra and Amoeba are tiny animals which reproduce by the process of asexual reproduction. The new organisms produced by asexual reproduction are exactly identical to the parent. The two most common methods of asexual reproduction are budding and binary fission.

Budding - Budding is a method of asexual reproduction in which a small part of the body of the parent organism grows out as a bud which then detaches and becomes a new organism. Example – Hydra. In Hydra, a small outgrowth called bud is formed on the side of its body by the repeated division of its cells which gradually grows to form a small Hydra. It then detaches itself from the parent body and lives as a separate organism.
Binary fission - Binary fission is a method of asexual reproduction in which the parent organism splits to form two new organisms. Example – Amoeba reproduces by binary fission. When the Ameoba cell has reached its maximum size of growth, its nucleus lengthens and divides into two parts. After that the cytoplasm divides into two parts, one part around each nucleus. In this way, one parent gives rise to two daughter Amoebae.

ANSWER

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