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Yogita Ingle 7 years, 3 months ago
a) Two quantities x and y are said to be in direct proportion
if they increase (decrease) together in such a manner that the ratio of their corresponding values remains constant.
That is if x/y=k= [k is a positive number] = Constant
b) Two quantities x and y are said to be in inverse proportion
if an increase in x causes a proportional decrease in y (and vice-versa) in such a manner that the product of their corresponding values remains constant.
That is, if xy = k= Constant
Posted by Shivam Sachan 7 years, 3 months ago
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Posted by Shivam Raj 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
- A polynomial is a monomial or the sum or difference of monomials. Each monomial is called a term of the poynomial .
- A polynomial with one term is called a monomial
- A polynomial with two terms is called a binomial
- A polynomial with three terms is called a trinomial
Posted by V Laksh 7 years, 3 months ago
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Posted by Ruthvik K 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
Ribosomes: Ribosomes are found in the form of tiny particles in a large number of cells. They are used to synthesize the variety of proteins that ensure the survival of the cell.
Golgi Apparatus: Golgi Apparatus also termed as Golgi Complex is a membrane-bound nucleus. Its main function is to modify proteins.
Nucleus: Nucleus stores the cell’s DNA and it is one of the largest organelles. Its main function is to monitor all activities of the cell which includes metabolism and growth by making use of DNA’s genetic information.
Mitochondria : Mitochondria is termed as the powerhouse of the cell. They are found in almost all eukaryotic cells. The mitochondrial genome is inherited maternally in several organisms.
Endoplasmic Reticulum: It is a membranous organelle. A part of the endoplasmic membrane is shared with its membrane. It is found in all eukaryotic cells. The smooth ER is involved in the production of lipids and the rough ER is involved in protein manufacture.
Chloroplasts: These are the cell organelles that are found in certain algae and plants. They are indulged in the synthesis and storage of foods. Chlorophyll is a pigment that is present in chloroplasts that convert light energy captured from the sun to glucose, carbon -dioxide, and water for food.
Posted by Rinku Gujjar 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
Mercury and Venus have no moons. Although Pluto isn’t a planet anymore, it does have a total of 3 moons.
The planet with the most moons in the Solar System is Jupiter, with a total of 63 confirmed moons (as of 2009). Of course, it’s always possible that more moons will be discovered orbiting Jupiter in the future, and that number will go up.
Posted by Souvik Banerjee 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
The process of coating Zinc layer on articles made copper or iron or other metals, which gets corrosion when exposed moist air for long time is called galvanization.
Ex: Iron Bridge can be protected from rusting by galvanizing the iron using zinc.
V Laksh 7 years, 3 months ago
Posted by Aman Lal 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
Forests have been very crucial to the development of all empires and settled developments in India.
- Metal ores such as iron and copper, gold and silver, coal and diamonds, invaluable timber, most medicinal herbs and animal products (e.g. wax, lac and honey) and animals themselves (elephants, the mainstay of imperial armies), all came from the forests.
- The continuation of life depended heavily on forests that helped recharge many of India’s rivers and the availability and quality of our air and water.
Posted by Aman Yadav 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
The force from a blacksmith hammers brings about a change is the shape of hot iron piece due to hammering. Hammering the iron requires a force and this force causes the hot iron to change the shape of iron. Thus, hot iron can be moulded in the shape as required.
Posted by Devansh Bidhuri 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
- Buildings should be made quake proof. Engineers and architects are the experts who can give suitable advice in this regard.
- Light-weight materials should be used for making the buildings in earthquake prone areas.
- Cupboards should be fixed to the walls so that they do not fall on someone during an earthquake.
- People should be made to practice drills for earthquake. Such drills should be frequently organized in schools and at public places.
- In case of an earthquake, you should hide under a table or any other similar structure. If you are in bed, then keep a pillow over your head and do not move out of the bed. If you are in an open area, try to move away from buildings and other structures.
- Proper installation of fire-fighting equipments should be ensured in buildings. Fire due to short circuit and gas leakage is quite common during an earthquake.
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