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Ask QuestionPosted by Varsha Dass 5 years, 5 months ago
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~Rashi ♥️♥️ 5 years, 5 months ago
Vaibhav (Silent Love)?? Avi 270505??? 5 years, 5 months ago
Posted by ~Rashi ♥️♥️ 5 years, 5 months ago
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Vaibhav (Silent Love)?? Avi 270505??? 5 years, 5 months ago
Vaibhav (Silent Love)?? Avi 270505??? 5 years, 5 months ago
Anushka ?? 5 years, 5 months ago
Posted by Mansi Mishra 5 years, 5 months ago
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Posted by Kajol Kapoor 5 years, 5 months ago
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Meghna Thapar 5 years, 5 months ago
On heating 
(baking soda), CO2 (carbon dioxide) gas is given out that turns limewater milky 
While on heating .10H2O (washing soda) water of crystallization is given out and the salt becomes anhydrous. The presence of water of crystallization given as product can be tested by treating .it with anhydrous 
(white) which becomes blue in colour in its contact. 
Posted by Anushka ?? 5 years, 5 months ago
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~Rashi ♥️♥️ 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
| utotrophs | Heterotrophs |
| Autotrophs are organisms that prepare their own food. | Heterotrophs depend upon other organisms for nutrition. |
| These are known as the producers and include green plants, algae and a few photosynthetic bacteria. | These are the consumers and include cows, buffaloes, tigers, horses, etc. |
| These can be classified as photoautotrophs and chemoautotrophs. | These can be classified as photoheterotrophs and chemoheterotrophs. |
| The chloroplast helps in preparing food. | They do not contain chloroplast so cannot prepare food. |
| They obtain energy from inorganic sources by converting light energy into chemical energy. | They obtain energy directly or indirectly from other organisms. |
Posted by Mahi....... . 5 years, 5 months ago
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~Rashi ♥️♥️ 5 years, 5 months ago
Posted by Bilquees Ahmed 5 years, 5 months ago
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? Pranali.A.P ? 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
Metal carbonates and Metal Hydrogencarbonates reacts with acids and produces corresponding metal salt, carbon dioxide and water.
Let us consider the reaction of sodium carbonate with dilute HCl. The reaction proceeds in the following manner.
Na2CO3 + 2 HCl → 2 NaCl + H2O + CO2
Posted by Sanjay Kumar Sinha 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Decomposition reactions are usually endothermic because they involve breaking of bonds. Breaking bonds requires an input of energy, while forming bonds releases energy. Since a decomposition reaction involves breaking bonds of a large molecule to form two or more smaller molecules, more bonds are broken than are formed, which means that the reaction will require a net input of energy making it endothermic. But there are decomposition reactions which are exothermic like decomposition of hydrogen peroxide.
Posted by Bilquees Ahmed 5 years, 5 months ago
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? Pranali.A.P ? 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
A neutralization reaction is when an acid and a base react to form water and salt and involves the combination of hydrogen ions and hydroxyl ions to generate water. The neutralization of a strong acid and strong base has a pH equal to 7.
Example : When Sodium hydroxide is added to hydrochloric acid. Sodium chloride and water are formed.
NaOH + HCl ⟶ NaCl + H2O
Posted by ? Pranali.A.P ? 5 years, 5 months ago
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? Pranali.A.P ? 5 years, 5 months ago
Vaibhav (Silent Love)?? Avi 270505??? 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
Heterotrophic nutrition is the mode of nutrition in which an organism depends on other living organisms for food.
Depending on the type of food, heterotrophs can be divided into 3 types-
- Carnivores- organisms which eat only animals. Example- lion, snake.
- Herbivores- organisms which eat only plants. Example- rabbit, elephant.
Omnivores- organisms which eat both plants and animals. Example- crow, dog.
Posted by Anushka ?? 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Amrita Devi Bishnoi is still remembered with reverence for the way she fought for protecting the khejri trees in Khejrali village. She; along with 363 other people; sacrificed her life for the protection of khejri trees in 1731. The ‘Amrita Devi Bishnoi National Award for Wildlife Conservation’ has been named in her honour.
Posted by Akash Dubey 5 years, 5 months ago
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? Pranali.A.P ? 5 years, 5 months ago
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? Pranali.A.P ? 5 years, 5 months ago
Lucifer?? Morningstar?? 5 years, 5 months ago
Posted by Lucifer?? Morningstar?? 5 years, 5 months ago
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Vaibhav (Silent Love)?? Avi 270505??? 5 years, 5 months ago
Pratham Shah 5 years, 5 months ago
~Rashi ♥️♥️ 5 years, 5 months ago
Posted by Lucifer?? Morningstar?? 5 years, 5 months ago
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Pratham Shah 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
| Breathing involves the process of inhaling oxygen and exhaling carbon dioxide | Respiration is the process of breaking down of glucose to produce energy which is then used by cells to carry out the cellular function. |
| Breathing takes place in the lungs. | Respiration takes place in cells. |
| Breathing is a voluntary physical process. | Respiration is an involuntary chemical process. |
| No energy is produced during the process. | Energy is released in the form of ATP. |
| It is an extracellular process, as it occurs outside cells. | It is an intracellular process, as it occurs inside cells. |
| No enzymes are used during the process. | A large number of enzymes are used during the process. |
| Breathing takes places through respiratory organs like lungs, nose, etc. | Respiration takes place in cells and cell organelles like mitochondria, etc. |
Vikram Singh 5 years, 5 months ago
Posted by Athulyashibu Ps 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Respiration is a process in which glucose is broken down with the help of oxygen and energy is released along with the production of carbon dioxide and water.
There are two types of respiration i) aerobic respiration ii) anaerobic respiration.
Aerobic respiration- the process of respiration that takes place in the presence of oxygen.
Example- glucose(a 6-carbon molecule) breaks into pyruvate(a 3-carbon molecule) and in the mitochondria pyruvate is broken down into 3 molecules of carbon dioxide and water with the release of energy.
Glucose --> pyruvate + energy à carbon dioxide + water + energy.
Anaerobic respiration- the process of respiration that takes place in the absence of oxygen.
Example-
- In yeast cells, glucose (a 6-carbon molecule) breaks into pyruvate (a 3-carbon molecule) and pyruvate is then converted to ethanol(a 2-carbon molecule) and carbon dioxide.
Glucose --> pyruvate + energy --> ethanol + carbon dioxide + energy.
- If there is a lack of oxygen in our muscle cells, pyruvate breaks in a different pathway. Glucose (a 6-carbon molecule) breaks into pyruvate (a 3-carbon molecule) and pyruvate is then converted to lactic acid (a 3-carbon molecule) along with the release of energy.
Glucose -->pyruvate + energy --> lactic acid + energy.
Posted by Lucifer ? Morningstar? 5 years, 5 months ago
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Posted by Mahi....... . 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Stomata are small pores or opening present in the epidermal cells of leaves. They open during the day and close during night. They take carbon dioxide required during photosynthesis during the day. Also, they release excess water released in the process of respiration during the night along with carbon dioxide. This opening and closing of stomata is controlled by concentration of solutes in the guard cell.
During daytime, the pH of the guard cells is alkaline. This results in the hydrolysis of water. The solutes from neighbouring epidermal and mesophyll cells enter the guard cells and lowers the osmotic potential and water potential of guard cells. This lowered water potential and osmotic potential allow the movement of water into guard cells from neighbouring cells. Due to this, guard cells become turgid. This results in the opening of the guard cells. During night time, carbon dioxide accumulates in the guard cells. Hence, it becomes acidic. The acidic pH favors the formation of starch in the guard cells. Hence, the solute concentration decreases. This makes the water from the guard cells to move away into neighbouring cells. The guard cells then become flaccid with no water. They collapse against each other and result in the closing of stomata.
Posted by Mahi....... . 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
- Loss of biodiversity can result in loss of balance in the ecosystem due to depletion of natural resources and increase in deforestation.
- This had led to imbalance in food chains, loss of natural habitats of animals and birds, increase of pollution, wide change in climate etc.
- An unstable ecosystem will be more likely to lose species. Several species like the Dodo bird, Cheetah, pink headed duck, etc. have already become extinct and there are several species like Bengal tiger, one horned rhinoceros that are already on the verge of extinction.
- Losing species means losing potential foods, medicines, industrial products, and tourism, all of which have a direct economic effect on the life of people.
- Therefore, loss of biodiversity can lead to a loss of ecological stability.
Posted by Mahi....... . 5 years, 5 months ago
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Meghna Thapar 5 years, 5 months ago
In the year 1731, Amrita Devi Bishnoi sacrificed her life along with 363 others for the protection of Khejri trees in Khejrali village near Jodhpur in Rajasthan. In her memory, the Government of India has recently instituted an Amrita Devi Bishnoi National Award for wild life conservation. She sacrificed her life along with her three daughters viz. Asu, Ratni and Bhagu in year 1730 to save green trees being felled by the Maharaja of Jodhpur at a place known as Khejarli in Marwar, Rajasthan. Along with her more than 363 other Bishnois, died saving the Khejri trees.
Posted by Lucifer?? Morningstar?? 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
When a part of the earth's upper mantle or lower crust melts, magma forms. A volcano is essentially an opening or a vent through which this magma and the dissolved gases it contains are discharged. Although there are several factors triggering a volcanic eruption, three predominate: the buoyancy of the magma, the pressure from the exsolved gases in the magma and the injection of a new batch of magma into an already filled magma chamber.
Posted by Prabhanshu Vishwakarma 5 years, 5 months ago
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Posted by Lucifer ? Morningstar? 5 years, 5 months ago
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Sanjay Kumar Sinha 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
Transpiration is a process that involves loss of water vapour through the stomata of plants. Transpiration is thought to be a 'necessary cost or evil' to allow the plant to absorb water from the soil. It is an inevitable process.
Posted by Prem Kumar 5 years, 5 months ago
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Sanjay Kumar Sinha 5 years, 5 months ago
Trapti Trapti Vashishtha 5 years, 5 months ago
Neeraj Purwar 5 years, 6 months ago
Posted by Lucifer?? Morningstar?? 5 years, 6 months ago
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Meghna Thapar 5 years, 5 months ago
Fill a container about half way or more with distilled water, add the acid, and then bring up to volume with more water. In the example above, fill a flask with about 150 mL or more with distilled water, add 6.9 mL of concentrated sulfuric acid, then continue to dilute with water to the 250 mL mark.) Sulfuric acid is prepared industrially by the reaction of water with sulfur trioxide (see sulfur oxide), which in turn is made by chemical combination of sulfur dioxide and oxygen either by the contact process or the chamber process.
Posted by Suraj Kumar 5 years, 6 months ago
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Pranav Gahlot 5 years, 5 months ago
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