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Ask QuestionPosted by Finestly ?? 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Echolocation is a complex as well as highly evolved process that has given bats the ability to exploit an ecological niche closed to all however a few animal groups-the night sky. Echolocation is not unique to bats, however it has arguably reached its evolutionary peak in these mammals. A simple definition is that it’s the analysis by an animal of echoes of its own emitted sounds, by which it builds a sound picture of its immediate environment. A number of animals use sound in this way as well as many use high frequency sound or ultrasound, beyond the range of human hearing . Acoustic is the science of sound as well as deals with the origin of sound as well as its propagation, either in free space or in pipes as well as channels or closed spaces. It’s the basis of many fundamental phenomena as well as also of numerous practical applications. A first subdivision of the field can be based on the different media in which. sound can propagate. In our everyday life sound waves are in air or somewhat more generally, in gases. From this we distinguish should in liquids which has its most important application in underwater techniques as well as furthermore, sound in solid bodies. This subdivision intersects with another one based on the sound frequency. The acoustical aspects of music are dealt with in a particular discipline named musical acoustics, which on the one hand examines the production of music by listeners. At this point musical acoustics blends with psychoacoustics the goal of which is the systematic investigation of the way in which sounds of any kind are processed as well as perceived by our hearing. Acoustics is an interdisciplinary science being interconnected with many other fields- with Physics, mechanical as well as electrical engineering, medicine, psychology, biology, architecture as well as building construction, music etc – a fact which makes the boundaries of acoustics somewhat unclear however contributes to the particular appeal of this science .
Posted by Sunita Singh 5 years, 5 months ago
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Pragya. Nag 5 years, 5 months ago
Guramrit Kaur 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
Parallels of Latitude: The imaginary lines which run parallel to the equator are called the parallels of latitude.
Meridians of Longitude: The imaginary lines which run from one Pole to another are called the meridians of longitude.
Posted by Supriya Tumpalliwar 5 years, 5 months ago
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°_° °_° 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
Nutrients are grouped into macronutrients and micronutrients. carbohydrates, protein,fats and water are macronutrients, and vitamins and minerals are micronutrients.
Posted by Sunita Singh 5 years, 5 months ago
- 3 answers
Pragya. Nag 5 years, 5 months ago
Guramrit Kaur 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
The latitudinal value of tropic of cancer is 23.5° N on June 21, when the sun is directly up above the head at noon.
The Equator is the circle at which sun is straight above the head.
Tropic of cancer is the northernmost declination of the sun at which sun rays fall straight.
Posted by Bhumi Thakur 5 years, 5 months ago
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°_° °_° 5 years, 5 months ago
Gaurav Seth 5 years, 5 months ago
- Handpicking, winnowing, sieving, sedimentation, decantation and filtration are some of the methods of separating substances from their mixtures.
- Husk and stones could be separated from grains by handpicking.
- Husk is separated from heavier seeds of grain by winnowing.
- Difference in the size of particles in a mixture is utilised to separate them by the process of sieving and filtration.
- In a mixture of sand and water, the heavier sand particles settle down at the bottom and the water can be separated by decantation.
- Filtration can be used to separate components of a mixture of an insoluble solid and a liquid.
- Evaporation is the process in which a liquid gets converted into its vapour. Evaporation can be used to separate a solid dissolved in a liquid.
Posted by Pavithra R 5 years, 5 months ago
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Kashish 👸 5 years, 4 months ago
Yogita Ingle 5 years, 5 months ago
Megaliths were huge stones erected to mark burial sites, used by people three thousand years back. This practice was common south India, Deccan, Kashmir and the north-east. The burial sites are both above and underground. Many distinctive articles were found buried with the body by the archaeologists in some megalithic burials.
Such remains indicate the buried people were herders and farmers as burying dad with food and equipment meant the entry in the next life. The type of burial reflects the status of the buried person. Brahmagiri and Adichanallur are some megalithic burial sites found in India.
Posted by Shreya Jain 5 years, 5 months ago
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Rajeevan Rajkumar 5 years, 5 months ago
Sambriddhi Mishra 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
Omnivores are animals that feed on other plants and animals for nutrition.
Following is an omnivorous animals list detailing other opportunistic feeders.
- Badgers
- Civets
- Catfish
- Piranhas
- Chimpanzees
- Squirrels
Bhumi Thakur 5 years, 5 months ago
Posted by Shreya Jain 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Because it has not cleared the neighborhood around its orbit, Pluto is considered a dwarf planet. It orbits in a disc-like zone beyond the orbit of Neptune called the Kuiper belt, a distant region populated with frozen bodies left over from the solar system's formation.
Posted by Manya Jain 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Because it has not cleared the neighborhood around its orbit, Pluto is considered a dwarf planet. It orbits in a disc-like zone beyond the orbit of Neptune called the Kuiper belt, a distant region populated with frozen bodies left over from the solar system's formation.
Posted by Shreya Jain 5 years, 5 months ago
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Siddhi Mehta 5 years, 5 months ago
Rajeevan Rajkumar 5 years, 5 months ago
°_° °_° 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
When we would open the wrap, we will find that tiny white structures have grown out of seeds. Such seeds are said to be sprouted. When the seeds begin to grow (or germinate) by tiny roots, they are called sprouts, and the process is called sprouting (ankuran). The sprouts contain more of vitamins A, B and C and make healthy snacks.
Posted by Fathima Aminsha 5 years, 5 months ago
- 5 answers
Yogita Ingle 5 years, 5 months ago
Actually earth is said to be spherical in shabe but scientifically earth is very slightly flattened in shape at the poles and bulge at middle.
Posted by Saniya Prajapati Prajapati 5 years, 5 months ago
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Posted by Musa Khan 5 years, 5 months ago
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Posted by Naaz Malik 5 years, 5 months ago
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Kashish 👸 5 years, 4 months ago
Posted by Joshika Kaliraman ?? 5 years, 5 months ago
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Posted by Joshika Kaliraman ?? 5 years, 5 months ago
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Posted by Tamanna Biswas 5 years, 5 months ago
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Posted by Divyant Garg 5 years, 5 months ago
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Gaurav Seth 5 years, 5 months ago
The festivals celebrated in our locality are: Diwali, Holi and Raksha Bandhan, Republic day, Independence Day, Gandhi Jayanti, Children’s day etc.
Out of these festivals National festivals like Republic day, Independence Day, Gandhi Jayanti and Children’s day are celebrated by all casts and religions.
Posted by Aarya Namdev 5 years, 5 months ago
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Posted by Bhumi Sharma 5 years, 5 months ago
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Gaurav Seth 5 years, 5 months ago
मंथरा
मंथरा राजा दशरथ की सबसे प्रिय और और सुंदर रानी कैकेयी की दासी थी जिसे विवाह के बाद उनके पिता ने उन्हें दहेज़ में दिया था। बताया जाता है कि कैकेयी को बचपन से मंथरा ने ही पाला-पोसा और उनका ख्याल रखा था इसलिए उन्हें वो अपनी बेटी सामान मानती थी वही रानी कैकेयी भी की भी वो अत्यधिक प्रिय दासी थी। वाल्मीकि रामायण की माने तो मंथरा एक गंधर्व कन्या (अप्सरा) थी जिसे इंद्र ने राम जी को वनवास हो इसके लिए ही पहले से ही कैकयी के पास भेज दिया था। हालांकि वो कहा से आई थी किसी को नहीं पता था, उसी के चलते कैकयी की माँ भी अपने पति से विद्रोह करती थी और पति ने उसे मायके भेज दिया था।
Posted by Vedant Attarde 5 years, 5 months ago
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Harpreet Kaur 5 years, 5 months ago
Gaurav Seth 5 years, 5 months ago
Inside the sepals are the petals of a flower. Petals of flower can be of different shape, size and colour.The petals of flowers have natural cents due to which they smell very nice. Petals also attract insects. The ring of colourful petals in a flower protects the reproductive organs of the flower.
Posted by Sunita Singh 5 years, 5 months ago
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Rajeevan Rajkumar 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
Actually earth is said to be spherical in shabe but scientifically earth is very slightly flattened in shape at the poles and bulge at middle
Posted by Vibhu Patel 5 years, 5 months ago
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Posted by Rohitha S 5 years, 5 months ago
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Posted by Vedant Attarde 5 years, 5 months ago
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°_° °_° 5 years, 5 months ago
Astha Sidame 5 years, 5 months ago
Posted by Gurcharan Singh Waheguru Ji 5 years, 5 months ago
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Gaurav Seth 5 years, 5 months ago
वनो की कीमत अमूल्य है। वन हमारे पृथ्वी और पृथ्वी पर रहने वाले जीव-जंतुओं और मनुष्य के लिए अनिवार्य है। अगर वन नहीं होंगे तो हमारा पृथ्वी पर जीवित रहना असंभव हो जायेगा। वन प्राकृतिक संस्धान है। वनो से हमे कई प्रकार की आवशयक वस्तुओं की प्राप्ति होती है। वन प्रकृति के संतुलन को बनाये रखने में मददगार साबित हुई है। वन वातावरण की शुद्धिकरण करने में सक्षम है। वनो के कारण मनुष्य को और जीव जंतुओं को आक्सीजन की प्राप्ति होती है। वृक्षों से हमे घनी छाया मिलती है, फलों का स्वाद नसीब होता है। अगर वन नहीं होंगे तो जंगली जानवर हमारे खेतो, घरो और सड़को तक आ जायेंगे। वृक्षों की जड़े उपजाऊ मिटटी को पकड़कर रखती है। जिससे मिटटी का कटाव नहीं होता। मिटटी का कटाव ज़्यादातर बाढ़ के समय होता है। वनो में पाए जाने वाले विशाल वृक्ष इसी भूमि कटाव को रोकते है। अगर वृक्ष नहीं होंगे तो बारिश की मात्रा में कमी आएगी।
वन पानी का भरपूर संरक्षण करते है जिससे भूमिगत जल की समस्या उत्पन्न नहीं होती। वनो के कारण वातावरण में आद्रता रहती है। जिसे अंग्रेजी में ट्रांस्पिरेशन कहते है। वृक्ष जलीय वायु छोड़ते है जिसकी वजह से वातावरण में humidity बनी रहती है। यह जलीय बुँदे बारिश लाने में सक्षम होती है। अगर वृक्षों को काट देंगे तो भूमि कटाव बढ़ेगा। वृक्षों को अभी मनुष्य अपनी स्वार्थ-सिद्धि के लिए काट रहा है।
मनुष्य को घर, शॉपिंग मॉल, कारखाने बनाने के लिए जगह कम पड़ रही है। नतीजा वृक्ष तेज़ी से रातो-रात काटे जा रहे है। जिसे अंग्रेजी में डेफोरेस्टशन कहते है। अर्थात पेड़ो को काटना, पेड़ों को काटकर कई कीमती फर्नीचर्स का निर्माण करते है जिससे लाखो रूपए मिलते है। आज कल कुछ लोग गैर कानूनी तरीको से पेड़ो को काट रहे है।
यह क़ानूनी अपराध है। वनो को काटने से पशु -पक्षियों का जीवन अस्त-व्यस्त हो रहा है। उन्हें खाने के लिए कुछ नहीं मिल रहा है और वो अपने प्राकृतिक घरों से बेघर हो रहे है। वनो से हमे कई लाभप्रद चीज़ो की आपूर्ति होती है। हमे ईंधन के लिए लकड़ी मिलती है। वृक्षों से औषधि प्राप्त होती है जिसका इलाज लाखो बीमारियों में किया जाता है। यहाँ कई वृक्ष मिलते है जैसे सागौन , बबूल, टीक, पीपल, देवदार इत्यादि। विश्व भर के कई प्रकार के उद्योग वनो पर पूरी तरीके से निर्भर है। बम्बू के वृक्षों से कागज़ बनता है। कई तरह की वस्तुओं का निर्माण करने के लिए हमे जंगल से ही कच्चा माल मिलता है। वृक्षों में चिड़िया अपना घोसला बनाती है और अन्य पशु -पक्षी वनो के आश्रय में अपना जीवन व्यतीत करते है। पशु वनो से मिलने वाले खाद्य सामग्री खाकर जीते है। वृक्षों के कारण ही बारिश का आगमन होता है। वृक्ष नहीं रहे तो बारिश का सारा जल समुन्दर में चला जायेगा। वृक्षों को गैरकानूनी तरीके से काटने की कुप्रथा को रोकने के लिए सरकार ने कुछ नियम बनाये है जिसके अंतर्गत अपराधी को सख्त सजा मिल सकती है।
अगर हम एक वृक्ष कांटे तो यह सुनिश्चित करे की हम दूसरा पेड़ भी लगाए। वृक्षारोपण की प्रक्रिया कई एनजीओस द्वारा चलाई जाती है जिसमे विद्यार्थी और कई लोग हिस्सा लेते है। प्रकृति की रक्षा करना हमारा परम् कर्त्तव्य है। लेकिन ज़्यादातर लोग इस विषय को समझने के लिए तैयार नहीं। वह अपनी खुदगर्जी और लालच में आकर वृक्षों की हत्या कर रहे है। लोगो में वृक्षों के महत्व के प्रति सामाजिक चेतना जगाई जा रही है। जुलाई महीने में वन महोत्सव मनाया जाता है ताकि लोगों में पेड़ -पौधों को लगाने के प्रति जागरूकता फैले। वनो के भीषण कटाव से कई जीव जंतुओं की प्रजातियां विलुप्त हो रही है। इस पर अंकुश लगाने की ज़रूरत है। वृक्ष प्रदूषण को रोकने में लाभदायक है। वृक्ष कई जेहरीले गैस को सोख लेता है जिससे पर्यावरण को नुक्सान नहीं पहुंचता है।
Posted by Ramgopal Raigar Gopal 5 years, 5 months ago
- 4 answers
Rajeevan Rajkumar 5 years, 5 months ago
Gaurav Seth 5 years, 5 months ago
People travelled from one subcontinent to another because of the following reasons:
- In search of livelihood
- To escape from natural disasters such as floods or droughts
- To conquer other lands Merchants travelled (caravans and ships) to sell their goods, while religious teachers walked (village to village or town to town) to offer instruction and advice
- To discover new places driven by the spirit of adventure
Gaurav Seth 5 years, 5 months ago
People travelled from one subcontinent to another because of the following reasons:
In search of livelihood
To escape from natural disasters such as floods or droughts
To conquer other lands
Merchants travelled (caravans and ships) to sell their goods, while religious teachers walked (village to village or town to town) to offer instruction and advice
To discover new places driven by the spirit of adventure
People travelled from one subcontinent to another because of the following reasons:
In search of livelihood
To escape from natural disasters such as floods or droughts
To conquer other lands
Merchants travelled (caravans and ships) to sell their goods, while religious teachers walked (village to village or town to town) to offer instruction and advice
To discover new places driven by the spirit of adventure
Posted by Finestly ?? 5 years, 5 months ago
- 2 answers
Harpreet Kaur 5 years, 5 months ago
Gaurav Seth 5 years, 5 months ago
Locomotion and Movement
Movement is when the living organism moves a body part or parts to bring without a change in the position of the organisms. Locomotion is when the movement of a part of the body leads to change in the position and location of the organism.
Posted by Priyanshu Dharia 5 years, 5 months ago
- 4 answers
Rajeevan Rajkumar 5 years, 5 months ago
Astha Sidame 5 years, 5 months ago
Finestly ?? 5 years, 5 months ago
Posted by Aalekh Sharma 5 years, 5 months ago
- 1 answers
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Rajeevan Rajkumar 5 years, 5 months ago
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