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Ask QuestionPosted by Gaurika Balha 5 years, 5 months ago
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Kailash Dhakad 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
Sodium Hydrogen Carbonate formula, also known as Sodium Bicarbonate, formula or Baking Soda .
The chemical or molecular formula of Sodium Hydrogen Carbonate is NaHCO3
It is an inorganic compound which is weakly basic and is composed of cations (Sodium) and anions (Bicarbonate).
Posted by Ujjawal Uniyal 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Lava can be defined as the hot molten rock that gets shot out of the surface of the Earth, this is a semi-solid, burning hot substance that comes out of the Earth’s surface. The temperatures at which the molten lava usually vary, however, they range from 1300 – 2200 degrees. Lava is usually categorized based on a number of different factors such as the viscosity and composition of the lava that spews out. It is important to know the types of volcanoes from which this type of lava may emerge.
Posted by Ujjawal Uniyal 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Heat is one of the essential forms of energy for the survival of life on earth. It plays a significant role in our lives. We use heat energy for cooking, ironing, transportation, recreation etc
Posted by Cdt. Devansh Bhayani 5 years, 5 months ago
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Gaurav Seth 5 years, 5 months ago
aNSWER : a
While we all have 32 permanent teeth, milk teeth are just 20 in number. The 20 primary or milk teeth include – two pairs of upper and lower incisors, one pair of canines in each jaw, one pair of first molars and one pair of second molars in each jaw.
Posted by Cdt. Devansh Bhayani 5 years, 5 months ago
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Gaurav Seth 5 years, 5 months ago
aNS IS : ( D ) reeling
Given below is a sequence of steps in the processing of wool :
Shearing , scouring , sorting , fibre spinning , fibre drying , rolling in silk yarn .
Posted by Pradeep Vishwakarma 5 years, 5 months ago
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Anwesh Thakur 5 years, 5 months ago
Ronit Chahar 5 years, 5 months ago
Gaurika Balha 5 years, 5 months ago
Posted by Rekha Khade 5 years, 5 months ago
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Ronit Chahar 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
Copper and aluminium wires are usually employed for electricity for electricity transmission because
1)they are available abundantly on earth
2)they are very good conductors of electricity
3)they offer very low resistance to the flow of current hence current wont be wasted in large amount
4)chances of theft is less
Kushagri Verma 5 years, 5 months ago
Posted by Souvik Mandal 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
The following figure shows a food chain, which shows that the plants are the ultimate source of food. 
Posted by Lucifer Morning Star 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Micronutrients are nutrients that are required by the body in lesser amounts for its growth and development. They play a major role in the metabolic activities of the body. These include vitamins and minerals.
Posted by Samiksha Singh 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
- Condensation is when a gas turns to a liquid.
- Condensations have been defined to include those reactions in which two molecules are joined with loss of water.
- Condensation is defined as the removal of heat from a system in such a manner that vapour is converted into liquid.
Posted by Basheera Fatima 5 years, 5 months ago
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Posted by Apeksha Mishra 5 years, 5 months ago
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Gaurav Seth 5 years, 5 months ago
Carbonic acid is added to soft drinks to make it fizzy. When the bottle is opened, the pressure decreases and the carbonic acid changes into carbon dioxide and water making it fizzy.
Posted by Anju Sohani 5 years, 5 months ago
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Ishita Jain 5 years, 5 months ago
Aryan Chauhan 5 years, 5 months ago
Posted by ??Arghyarupa?? 5 years, 5 months ago
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Deepanshi Agrawal 5 years, 5 months ago
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Gaurika Balha 5 years, 5 months ago
Ishita Jain 5 years, 5 months ago
Posted by ??Arghyarupa?? 5 years, 5 months ago
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Meghna Thapar 5 years, 5 months ago
Food moves through your GI tract by a process called peristalsis. The large, hollow organs of your GI tract contain a layer of muscle that enables their walls to move. The movement pushes food and liquid through your GI tract and mixes the contents within each organ. As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules. The body then absorbs these smaller molecules through the walls of the small intestine into the bloodstream, which delivers them to the rest of the body.
Posted by Sandeep Bhagat 5 years, 5 months ago
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Posted by Sunil Aher 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Stomata are tiny pores or opening on the surface of a leaf.
Functions of stomata:
(i) Evaporation of water in plants in the form of vapour takes place through stomata during transpiration.
(ii) Exchange of gases (oxygen and carbon dioxide) also takes place through stomata.
Meghna Thapar 5 years, 5 months ago
The two main functions of stomata are to allow for the uptake of carbon dioxide and to limit the loss of water due to evaporation. In many plants, stomata remain open during the day and closed at night. Stomata are open during the day because this is when photosynthesis typically occurs. Stomata control gas exchange. When open, these pores allow carbon dioxide in, and oxygen and water out. Carbon dioxide in for carbon fixing. Oxygen out to avoid photorespiration.
Posted by Pranshu Prem 5 years, 5 months ago
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Kailash Dhakad 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
Cellulose is a polysaccharide consisting of a linear chain of several hundred to many thousands of β linked D-glucose units. Cellulose is an important structural component of the primary cell wall of plants
Posted by Bhavana Gupta 5 years, 5 months ago
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Meghna Thapar 5 years, 5 months ago
The rectus abdominis muscle, also known as the "abdominal muscle", is a paired muscle running vertically on each side of the anterior wall of the human abdomen, as well as that of some other mammals. There are two parallel muscles, separated by a midline band of connective tissue called the linea alba. The most well-known and prominent abdominal muscle is the rectus abdominis. It is the long, flat muscle that extends vertically between the pubis and the fifth, sixth, and seventh ribs. The rectus abdominis connects to the xiphoid process, a bony landmark at the bottom of the sternum.
Posted by Parth Saxena 5 years, 5 months ago
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Gaurav Seth 5 years, 5 months ago
There are three temperature scales in use today, Fahrenheit, Celsius and Kelvin.
Fahrenheit temperature scale is a scale based on 32 for the freezing point of water and 212 for the boiling point of water, the interval between the two being divided into 180 parts. The 18th-century German physicist Daniel Gabriel Fahrenheit originally took as the zero of his scale the temperature of an equal ice-salt mixture and selected the values of 30 and 90 for the freezing point of water and normal body temperature, respectively; these later were revised to 32 and 96, but the final scale required an adjustment to 98.6 for the latter value.
There are temperature scales on either side of the mercury thread, one in Celsius scale and the other in Fahrenheit scale. Since the Fahrenheit scale is more sensitive than the Celsius scale, body temperature is measured in °F only. A clinical thermometer indicates temperatures from a minimum of 35 °C or 94 °F to a maximum of 42 °C or 108 °F.
Posted by Arun Kumar 5 years, 5 months ago
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Posted by Nandini Solanke 5 years, 5 months ago
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Gaurav Seth 5 years, 5 months ago
A very thin thread-like strand from which cloth is made is called fibre. Fabric is produced by weaving or knitting long ,twisted threads called yarn made from fibres. Our school uniform, shirts ,trouser ,blouses ,skirts, shorts ,saree, shawl, blanket, bed sheets, towel, table cloth, curtains, duster are all made from different kinds of fabrics.
Posted by Rasmita Sunani 5 years, 5 months ago
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Posted by Rasmita Sunani 5 years, 5 months ago
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Meghna Thapar 5 years, 5 months ago
Radiation is a method of heat transfer that does not rely upon any contact between the heat source and the heated object. The energy lost is emitted as light or electromagnetic radiation. Energy that is absorbed by an atom causes its electrons to "jump" up to higher energy levels. All objects absorb and emit radiation. Heat energy is transferred from hot places to cooler places by convection. Liquids and gases expand when they are heated. This is because the particles in liquids and gases move faster when they are heated than they do when they are cold. As a result, the particles take up more volume.
Posted by Kishore Jana 5 years, 5 months ago
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Akanksha Thakur 5 years, 5 months ago
Gita Maharana 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
Chlorophyll is a green coloured pigment found in plants. It is also called as the green blood of plants due to the fact that it has very similar chemical structure to Haemoglobin in human blood. It is a complex organic molecule, responsible for photosynthesis in plants and in some other organisms. All the organisms get food only because of chlorophyll in plants.
Posted by Singh Kumar 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Procrastination is the avoidance of doing a task that needs to be accomplished by a certain deadline.[1] It could be further stated as a habitual or intentional delay of starting or finishing a task despite knowing it might have negative consequences.[
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Yogita Ingle 5 years, 5 months ago
Structure of Human Heart
Working of Heart
The right atrium receives blood from the upper and lower body through the superior vena cava and the inferior vena cava, respectively, and from the heart muscle itself through the coronary sinus. The right atrium is the larger of the two atria, having very thin walls. The right atrium opens into the right ventricle through the right atrioventricular valve(tricuspid), which only allows the blood to flow from the atria into the ventricle, but not in the reverse direction.
The right ventricle pumps the blood to the lungs to be reoxygenated.
The left atrium receives blood from the lungs via the four pulmonary veins. It is smaller than the right atrium but has thicker walls. The valve between the left atrium and the left ventricle, the left atrioventricular valve(bicuspid), is smaller than the tricuspid. It opens into the left ventricle and again is a one-way valve.
The left ventricle pumps the blood throughout the body through the aorta, which is the largest artery in the body. The walls of the left ventricle are the thickest among all the chambers.
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