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Ask QuestionPosted by Chandanveer Kaur 5 years, 7 months ago
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Meghna Thapar 5 years, 2 months ago
The first change to occur by heating collagen is the shortening of the length of collagen.
Boiling at normal temperatures and pressure does not damage collagen unless we are providing a reasonable temperature.
Collagen proteins undergo changes at 572°F (300°C).
Above 572°F, collagen proteins undergo a degradation that cannot be reversed. Collagen is a scleroprotein (q.v.), being one of a family of proteins marked by low solubility in water. ... Upon exposure to boiling water, collagen is converted to gelatin.
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It is practice of raising unpolluted crops through the use of manures, biofertilizers and biopesticides with healthy cropping systems that provide optimum nutrients to plants and keep the pests as well as weeds under control.
Advantages of Organic farming:
- It does not cause pollution of any component of our environment.
- Farm wastes are recycled.
- Soil fertility is preserved.
Posted by Paras Sharma 5 years, 7 months ago
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Meghna Thapar 5 years, 7 months ago
The number of protons present in the nucleus of an atom is the atomic number of that atom. It is represented by the symbol Z.
Atomic number (Z) = Number of protons (p) = Number of electrons
Atomic mass number is defined as the sum of the number of protons and neutrons contained in the nucleus of an atom of that element. It is denoted by the symbol A.
The mass of an atom is practically due to protons and neutrons alone. These are present in the nucleus of an atom. Hence protons and neutrons are also called nucleons. Therefore, the mass of an atom resides in its nucleus.
Atomic mass number (A) = Number of protons (p) + Number of neutrons (n)
If atomic mass and number of protons is given, we can find the number of neutrons.
Posted by Rishav Singh 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
- Gravitational force is responsible for binding us to Earth.
- It is the reason behind the motion of moon around the earth.
- Planets revolve around the sun because of it.
- Even the tides that get formed by rising and falling of water level in the ocean happen because of the gravitational force exerted by both sun and moon on the earth.
Posted by Abhay Ghosh 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
A cell is defined as the smallest, basic unit of life that is responsible for all of life’s processes.
Cells are the structural, functional, and biological units of all living beings. A cell can replicate itself independently. Hence, they are known as the building blocks of life.
Posted by Simmu Pal 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
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Non-uniform motion |
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Posted by Simmu Pal 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
If the location of an object changes with time the object is said to be in motion.
Posted by Ayush Kumar 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
Stars do not really twinkle, they just appear to twinkle when seen from the surface of Earth. The stars twinkle in the night sky because of the effects of our atmosphere. When starlight enters our atmosphere it is affected by winds in the atmosphere and by areas with different temperatures and densities. This causes the light from the star to twinkle when seen from the ground due to atmospheric refraction.
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Alpha particles are positively charged particles, having two protons and two neutrons and are identical to the nucleus of helium atom. They are spontaneously emitted by radioactive element.
Posted by Dynamic Blast Gaming 5 years, 7 months ago
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Yogita Ingle 5 years, 7 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 Prianshu Jindal 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
Compression : Particles of the medium are pushed close to each other. It is a region of high density and pressure.
Rarefaction : Particles of the medium move away It is a region of low density and pressure.
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God Father 5 years, 7 months ago
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