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CBSE Free Doubts and Solutions

CBSE - X - Mathematics

The HCF and LCM of two numbers are 33 and 264 respectively. Wheh the first number is completely devided by 2, the qoutient is 33. Find both the numbers.

Asked by ratha_krish 14th August 2020, 1:54 PM
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CBSE - XI Science - Mathematics

Hello Sir. Can you tell me the difference between subset and proper subset. Also please tell me the correct representation of their symbols.  

Asked by seeni2005 14th August 2020, 1:36 PM
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CBSE - X - English

why were anne and his friend G laughing at the boys sitting just behind them

Asked by rohankhanna1810 14th August 2020, 11:27 AM
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CBSE - IX - English

which poetic device has been used in this line -"And lie listening to the patter"

Asked by milanrao14780 14th August 2020, 9:28 AM
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CBSE - VIII - Mathematics

What is Equation

Asked by t 13th August 2020, 10:04 PM
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CBSE - VIII - English

Read the following passage carefully and answer the questions that follow. Spiders are noted for web building, yet many kinds never use their talents in this way. Instead of building silken traps they hunt their prey, stalking and leaping on their victims or hiding or pouncing on them. Webs vary in style from the irregular cobweb that neat housewives constantly dust away, to the beautiful silken orbs that we so often find in a garden. There are four general types besides the irregular mesh and the orb; we find the funnel webs and the sheet webs. Until they reach full growth male as well as female spiders spin silk and construct webs. However, after their last moult, the males no longer engage in spinning but often linger on or near the webs of their mates. Messy as an irregular mesh web may appear, it is nevertheless built on a definite plan and is very efficient. The central maze is a widespread trap. Within this maybe a densely woven sheet, combining such materials such as leaves and grains of sand with the silk thus serving as a shelter for the little builder. Anchoring the maze firmly to supports are long lines, which have small knobs of sticky silk near their base. When a small insect brushes against a sticky line it is snared and as it struggles, the line breaks and tethers the victim. The common house spider and other members of the family prepare webs of this type. The sheet web has been developed on a platform like plan, with the webbing closely woven on a horizontal plane. A ‘platform’ results and on this insects jump, fly or drop, often being stopped in their flight by lines which the spider has crisscrossed above the platform. After building the platform or sheet, the spider clings to its underside. At times it constructs another sheet below so that it is sandwiched between two silken barriers. When victims land on the top sheet, it pulls them through the silk. Sheet webs are built to last a long time. Even more permanent than these sheet webs is the handiwork of the funnel web spiders. Outside the retreat in which it lives, a member of this family starts to spin its webbing until a smooth runway is created. If this is on the ground it suggests a sheet and if suspended from vegetation, a tiny hammock. In any case it looks like a good landing field to insects. However after alighting, they find themselves bogged down in a soft trap, and the spinner, which has been waiting at the mouth of its funnel retreat, quickly attacks them. As one of these spiders grows to adulthood, and as long as it remains active, it continues to add to its structure. Gradually a thin small mesh becomes a large thick blanket. In autumn these webs are at their peak, and especially when covered with dew, maybe seen spreading over acres of grasslands like dainty fairy woven carpeting. 3.1 On the basis of your reading of the above passage, make notes on it. Use abbreviations wherever necessary. (Minimum 4) Also suggest a suitable title to the passage. 3.2 Write a summary of the passage in not more than 80 words using the notes made.

Asked by avishi1520sharma 13th August 2020, 6:03 PM
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CBSE - IX - English

they will help us change into passive voice.

Asked by girjasahu948 13th August 2020, 4:39 PM
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CBSE - IX - History

In which chapter there is question trace the destructions of democracy

Asked by kiranpanjiyar44 13th August 2020, 3:06 PM
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CBSE - VI - Mathematics

A vessel has 4 litres and 500 ml of curd.in how many glasses,each of 25 ml capacity, can it be filled?

Asked by gaikwadsanjay73 13th August 2020, 12:20 PM
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