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Ask QuestionPosted by Deepamayee Pasayat 5 years, 5 months ago
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Piyush Rawat 5 years, 5 months ago
Posted by Prisha ?? 5 years, 5 months ago
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Riyana D'Cunha 5 years, 5 months ago
Posted by Riys Singh 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Exchange of Gas takes place in lungs between the alveoli and capillaries which are tiny blood vessels, placed at the walls of alveoli.
Posted by Shreya Kumari 5 years, 5 months ago
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Binud Borah 5 years, 5 months ago
Meghna Thapar 5 years, 5 months ago
The ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (UVR) from the sun, protecting life on Earth from its potentially harmful effects. When the sky is clear, there is an inverse relationship between stratospheric ozone and solar UVR measured at the Earth's surface. Depending on where ozone resides, it can protect or harm life on Earth. Most ozone resides in the stratosphere (a layer of the atmosphere between 10 and 40 km above us), where it acts as a shield to protect Earth's surface from the sun's harmful ultraviolet radiation.
Posted by Mahi..... ♾ 5 years, 5 months ago
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Vivek Kumar 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
The alkaline mucous layer protects epithelial cells of stomach wall against the acids and enzymes in the gastric lumen.
If mucus is not secreted by the gastric glands, then the hydrochloric acid secreted by the glands will digest or corrode the walls of the stomach.
Posted by Lucifer?? Morningstar?? 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Platinum with the atomic number 78 and an atomic mass of 195 in the periodic table is an extremely rare element found in the crust of the earth.
| Symbol | Pt |
| Atomic Number | 78 |
| Atomic Mass | 195.09 g.mol -1 |
Posted by Amal Ajmera 5 years, 5 months ago
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Posted by Manoj Kumar 5 years, 5 months ago
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Gaurav Seth 5 years, 5 months ago
cobalt 27 and nickel 28
According to modern periodic law, elements are arranged in the order of increasing atomic numbers. The atomic number of cobalt is 27 and that of nickel is 28. So, in the modern periodic table, cobalt with lower atomic number (27) comes first and nickel with higher atomic number (28) comes later, even if their atomic masses are in the wrong order. In this way, the positions of cobalt and nickel were resolved in the modern periodic table.
Posted by Pranali Solanke 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
DNA copying is an essential part of the reproduction process because an organism’s entire genetic information is contained within the DNA. If the DNA mutates, then there is a chance that the resulting organism may be born with a deformity or other genetic abnormality.
Posted by Rajinder Singh 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
The heart receives deoxygenated blood from different parts of the body, and it pumps this blood to the lungs. The oxygenated blood from the lungs returns to the heart, which is pumped again into different parts of the body by the heart. Thus, the blood passes twice through the heart making one complete round through the body. This is called double circulation.
Posted by Shikha Kanwar 5 years, 5 months ago
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Posted by Sonu Singh 5 years, 5 months ago
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Gaurav Seth 5 years, 5 months ago
HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)
Here HCl is acid, NaOH is base
Posted by Kajal Dubey Dubey 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Plaster of Paris is a chemical compound consisting of fine white powder, which hardens when exposed to moisture and allowed to dry. Its chemical formula of Plaster of Paris is CaSO4.1/2H2O and is better known as calcium sulfate hemihydrate.
Posted by Lucifer?? Morningstar?? 5 years, 5 months ago
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Posted by Sakshi Sharma 5 years, 5 months ago
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Posted by Dhanya Rajput 5 years, 5 months ago
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Gaurav Seth 5 years, 5 months ago
1. Definition
The first point of difference between anabolism and catabolism is their definition. Anabolism is the metabolic process which transforms simple substances into complex molecules. On the other hand, catabolism is where complex and large molecules are broken down into small ones.
2. Role in Metabolism
Catabolism is the destructive phase of metabolism, whereas anabolism is the constructive one.
3. Energy and Heat Requirement
Another significant difference between metabolism catabolism and anabolism is the heat and energy requirements. Anabolism is an endergonic reaction. It means this reaction requires ATP energy as it absorbs heat.
However, catabolism being an exergonic reaction releases ATP energy and does not require an
Posted by Koralugundi Vasantha 5 years, 5 months ago
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Gaurav Seth 5 years, 5 months ago
Area of cross-section of the wire, A =π (d/2) 2
Diameter= 0.5 mm = 0.0005 m
Resistance, R = 10 Ω
We know that
∴ length of the wire = 122.72m
If the diameter of the wire is doubled, new diameter=2×0.5=1mm=0.001m
Let new resistance be Rʹ
∴ the new resistance is 2.5 Ω
Decrease in resistance = 10 - 2.5
= 7.5 Ω.
Posted by Alok Yadav 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
In commercial electric motors:
i. the coil is wound on a soft iron core. This increases the strength of magnetic field, which makes the motor more powerful.
ii. the coil contains a large number of turns of insulated copper wire.
iii. a powerful electromagnet is used in place of permanent magnet.
Posted by Priya Ranjan Naik 5 years, 5 months ago
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Riyana D'Cunha 5 years, 5 months ago
Posted by Lucifer?? Morningstar?? 5 years, 5 months ago
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Gaurav Seth 5 years, 5 months ago
Arid soils range from red to brown in colour.
- They are sandy in texture and saline in nature. In some areas, the salt content is very high and common salt is obtained by evaporating the water.
- Due to dry climate, high temperature, evaporation is faster and the soil lacks humus and moisture.
- The lower layers of the soil are occupied by Kankar because of the increasing calcium content downwards.
- After proper irrigation, these soils become cultivable as has been in the case of western Rajasthan.<button aria-label="like this post" title="like this post">
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Posted by Sonu Singh 5 years, 5 months ago
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Gaurav Seth 5 years, 5 months ago
Hydrogen gas
Hydrogen gas is liberated when an active metal reacts with hydrochloric acid. For testing the presence of hydrogen gas, bring a burning candle near the mouth of the test tube in which the reaction is taking place. If the gas burns with a popping sound, then it can be concluded that it is hydrogen.
2H2(g) + O2(g) → 2H2O(g)
Posted by Sonu Singh 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
We know that sodium carbonate is a basic salt. Hence, its aqueous solution will also be basic in nature. When red litmus paper is dipped in sodium carbonate solution it will change to blue colour.
Posted by Mahi..... ♾ 5 years, 5 months ago
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Lucifer?? Morningstar?? 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
Cellulose forms the largest part of the herbivore’s food. Digestion of cellulose takes a longer time, because the enzymes are produced by the ruminant bacteria that live in the gut of the herbivore. Longer small intestine ensures that the food stays for a longer duration and proper digestion is possible. In the case of carnivores, cellulose is not present in the diet, thus the length of small intestine is less.
Posted by Ayush Chaprana 5 years, 5 months ago
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Khushi Yadav ? 5 years, 5 months ago
Bhumi Goyal 5 years, 5 months ago
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Bhumi Goyal 5 years, 5 months ago
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Posted by Jitesh Gawai 5 years, 5 months ago
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Ts Vlogs 5 years, 5 months ago
Gaurav Seth 5 years, 5 months ago
It is the extra cellular fluid of blood constituting about 55 percent of the blood volume. It is faint yellow coloured viscous fluid, which is alkaline in nature. Plasma contains 91-92%water, 7 % proteins, 0.9% inorganic salts, 0.1% glucose and the rest includes various other organic and inorganic substances.
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Yogita Ingle 5 years, 5 months ago
Bleaching powder is CaOCl2. It reacts with dilute acids to release chlorine gas which is a strong oxidizing agent. The real action of bleaching powder is due to chlorine.
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