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Ask QuestionPosted by Shreyas Patil 5 years, 1 month ago
- 3 answers
Yash Kumar Srivastava 5 years, 1 month ago
Gaurav Seth 5 years, 1 month ago
A polymer is a very big molecule formed by the combination of a large number of small molecules. The small molecules which join together to form a polymer is called monomer. The monomer which make a polymer may be of the same compound or of different compounds.
Posted by Shreyas Patil 5 years, 1 month ago
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Gaurav Seth 5 years, 1 month ago
<font style="margin:0px; padding:0px; box-sizing:inherit; color:#696969; font-family:arial, helvetica, sans-serif; font-size:9pt; font-style:normal; font-variant-ligatures:normal; font-variant-caps:normal; font-weight:400; letter-spacing:normal; orphans:1; text-align:start; text-transform:none; white-space:normal; widows:2; word-spacing:0px; -webkit-text-stroke-width:0px; background-color:#ffffff; text-decoration-style:initial; text-decoration-color:initial">Blended fabrics are made by mixing two different kinds of fibres. These blended fabrics have combined properties of each component fibre.</font>
Examples: Polycot is a mixture of polyester and cotton, Polywool is a mixture polyester and wool.
Blended fabrics have good appearance, comfort and available in low cost.
Posted by Shreyas Patil 5 years, 1 month ago
- 2 answers
Gaurav Seth 5 years, 1 month ago
Teflon is used to make non stick pans as it is not affected by heat and oil doesnot stick to it.
Explanation:
reasons why Teflon is used for Non Stick material: It is highly inert, meaning that it doesn't react with other substances easily. It has a high melting point and shows exceptional electrical properties, which makes it an excellent choice to be used for the wiring of computer and aerospace applications.
Posted by Shreyas Patil 5 years, 1 month ago
- 1 answers
Gaurav Seth 5 years, 1 month ago
A n s w e r :
The chemical which has a fruit like smell is ESTER .
It is because Ester is an aromatic compounds .
Aromatic compounds have a pleasant and sweet smell .
Posted by Shreyas Patil 5 years, 1 month ago
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Gaurav Seth 5 years, 1 month ago
Answer: Cotton is made up of natural polymer namely cellulose.
Explanation : A synthetic fibre is made of small units which are joined together. These units are made of chemical substances. Such small units combine to form a large single unit called a polymer. Hence, a polymer is made of many repeating units. Polymers also occur in nature. For example, cotton is a natural polymer which is made from the cellulose. Cellulose is made up of a large number of glucose units.
Posted by Parveen Gupta 5 years, 1 month ago
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Posted by Parveen Gupta 5 years, 1 month ago
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Surjadeep Saha 5 years, 1 month ago
Posted by Devpatel Dev 5 years, 1 month ago
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Posted by Uzair Chack 5 years, 1 month ago
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Posted by Swatika Mandal 5 years, 2 months ago
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Yash Kumar Srivastava 5 years, 1 month ago
Aryan Raj 5 years, 1 month ago
Yogita Ingle 5 years, 2 months ago
The process of watering plants to ensure that crops get enough quantity of water atproper phase during their growing season to increase the expected yields of any crop is called irrigation.
Deepak Sanwal 5 years, 2 months ago
Posted by Mahashweta Chakraborty 5 years, 2 months ago
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Yash Kumar Srivastava 5 years, 1 month ago
Yogita Ingle 5 years, 2 months ago
| <center>Proton</center> | <center>Neutron</center> | <center>Electron</center> |
| They are positively charged | They are neutral | They are negatively charged |
| They are present in the nucleus of all atoms | They are present in the nucleus of all atoms except hydrogen | They are present in the outer shells within an atom and orbit the positively charged nucleus in well-defined orbits |
| The mass of the proton is taken as one unit and equals the mass of a neutron | The mass of the neutron is considered as one unit and it equals the mass of a proton | The mass of an electron is about 1/2000 times the mass of a hydrogen atom |
| A proton is represented as “p” | A neutron is represented as “n” | An electron is represented as “e” |
Posted by Nikhil Sachdeva 5 years, 2 months ago
- 3 answers
Shatakshi Singh 5 years, 1 month ago
Yogita Ingle 5 years, 2 months ago
- All materials available in our environment which satisfy our needs are called as Resources.
- All resources have some value. Value means worth. Some resources have economic value and some do not, but both are important and satisfy human needs.
Dhritisman Sarma 5 years, 2 months ago
Posted by Kaushal Gamer Ff 5 years, 2 months ago
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Posted by Shubhi Bam 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
- Gravitational force this is force applied without being aware of it and all time.
- Muscular force can be applied only while in contact with the object. So, it is a contact force, not a non-contact force.
Posted by Sadhana Patil 5 years, 2 months ago
- 1 answers
Yogita Ingle 5 years, 2 months ago
Protons
- Protons are positively charged subatomic particles. The charge of a proton is 1e, which corresponds to approximately 1.602 × 10-19
Posted by Gurnaib Singh 5 years, 2 months ago
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Shatakshi Singh 5 years, 1 month ago
Yogita Ingle 5 years, 2 months ago
Microorganisms- A living organism that is very minute to be seen by the naked eye, especially a single celled organism, such as a bacterium is called microorganism. Microorganisms are classified into four major groups mainly bacteria, fungi, protozoa and some algae.
Posted by Arvind Kumar 5 years, 2 months ago
- 3 answers
Mohanavalli S 5 years, 2 months ago
Ayush Phad 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
If the top layer of soil is exposed, then it will gradually expose the lower layer of soil, which is hard and rocky in nature. This type of soil is less fertile as it contains less humus. Continued soil erosion will make the land barren or infertile.
Posted by Abdul Jabbar 5 years, 2 months ago
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Posted by Deepak Sanwal 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
A calorie is a unit of measurement — but it doesn't measure weight or length. A calorie is a unit of energy. When you hear something contains 100 calories, it's a way of describing how much energy your body could get from eating or drinking it.
Posted by Raj Bhusari 5 years, 2 months ago
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Vishu Sharma 5 years, 2 months ago
Gaurav Seth 5 years, 2 months ago
Antibody, also called immunoglobulin, a protective protein produced by the immune system in response to the presence of a foreign substance, called an antigen. Antibodies recognize and latch onto antigens in order to remove them from the body.
Posted by Tannu Yadav 5 years, 2 months ago
- 3 answers
Shatakshi Singh 5 years, 1 month ago
Pavani Rao 5 years, 2 months ago
Gaurav Seth 5 years, 2 months ago
Cells are the basic building blocks of all living things. Cell is a structural and functional unit of living organisms.
Cells may be compared to bricks. Bricks are assembled to make a building. Similarly, cells are assembled to make the body of every organism. All organisms are made up of cells.
All basic chemical and physiological functions of living beings – for example, repair, growth, movement, immunity, communication, and digestion etc are carried out inside the cells.
Posted by Ushasi Acharya 5 years, 2 months ago
- 1 answers
Yogita Ingle 5 years, 2 months ago
A cell wall is defined as the non-living component, covering the outmost layer of a cell. Its composition varies according to the organism and is permeable in nature. The cell wall separates the interior contents of the cell from the exterior environment.
Posted by Madiha Vii Gh1 5 years, 2 months ago
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Gaurav Seth 5 years, 2 months ago
False
The causative agent of cholera is <i>Vibrio cholerae</i>.<i> Vibrio cholerae</i> is a bacterium.
Malaria is caused by parasitic protozoa named as <i>Plasmodium falciparum</i>, <i>Plasmodium vivax</i>.
Posted by Nelson Fernandes 5 years, 2 months ago
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Posted by Afin Geomet.S 5 years, 2 months ago
- 5 answers
Madiha Vii Gh1 5 years, 2 months ago
Gaurav Seth 5 years, 2 months ago
Synthetic fibers
These are also known as man-made fibers. Synthetic fibers are obtained by chemical processing of petrochemicals. The synthetic fibers can be woven into a fabric, just like natural fiber. Synthetic fibers have a wide range of use ranging from household articles like ropes, buckets, furniture, containers, etc. to highly specialized uses in aircrafts, ships, spacecrafts, health care, etc.
eg : Rayon , polyster,nylon
Posted by Shreyas Patil 5 years, 2 months ago
- 2 answers
Shatakshi Singh 5 years, 1 month ago
Yogita Ingle 5 years, 2 months ago
- Galileo Galilei develops a compound microscope with a convex and a concave lens.
- Ernst Ruska and Max Knoll design and build the first transmission electron microscope (TEM), based on an idea of Leo Szilard.
Posted by Ashish Babu 5 years, 2 months ago
- 2 answers
Yogita Ingle 5 years, 2 months ago
Carbon and tars are black because light that we can see cannot pass through, and light that hits the coal mostly does not get reflected. Instead the coal takes up the light and grows warmer. So we see very little light from the coal, and this makes it look black.
Mahi 07 A 5 years, 2 months ago
Posted by Mahi 07 A 5 years, 2 months ago
- 2 answers
Yogita Ingle 5 years, 2 months ago
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Yash Kumar Srivastava 5 years, 1 month ago
1Thank You