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Science Quiz-1 Index => Science Quiz-1 Quiz Show all questions <=   => Which of the following body parts is/are not a parts of the skeletal system? ?   Skin ?   Bones ?   Cartilages ?   Muscles Which of the following animals makes the soil more useful for plants? ?   Cockroaches ?   Ants ?   Spiders ?   Earthworms The type of the movement shown by snakes is: ?   Slithering ?   Walking ?   Creeping ?   Swimming Which organs helps a fish to swim in water ?   Scales ?   Stream lines body ?   Fines ?   All of these Which characteristics feature enables a bird to fly? ?   Feathers ?   Wings ?   Hollow bones ?   All of these Which parts of the skeleton is present in the external ear? ?   Cartilage ?   Soft bones ?   Fixed joints ?   Ligament At which parts of our body can we bend? ?   Knee ?   Elbow ?   Neck ?   All of these Which parts of body is protected by the vertebral col

  A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus and minus signs. 1. आक्सीजन—O₂ 2. नाइट्रोजन—N₂ 3. हाइड्रोजन—H₂ 4. कार्बन डाइऑक्साइड—CO₂ 5. कार्बन मोनोआक्साइड—CO 6. सल्फर डाइऑक्साइड—SO₂ 7. नाइट्रोजन डाइऑक्साइड—NO₂ 8. नाइट्रोजन मोनोऑक्साइड (नाइट्रिक ऑक्साइड) — NO 9. डाईनाइट्रोजन ऑक्साइड (नाइट्रस ऑक्साइड) — N₂O 10. क्लोरीन — Cl₂ 11. हाइड्रोजन क्लोराइड—HCl 12. अमोनिया — NH₃ अम्ल 13. हाइड्रोक्लोरिक एसिड — HCl 14. सल्फ्यूरिक एसिड — H₂SO₄ 15. नाइट्रिक एसिड — HNO₃ 16. फॉस्फोरिक एसिड — H₃PO₄ 17. कार्बोनिक एसिड — H₂CO₃ क्षार 18. सोडियम हाइड्राक्साइड—NaOH 19. पोटेशियम हाइड्राक्साइड—KOH 20. कैल्शियम हाइड्राक्साइड—Ca(OH)₂ लवण 21. सोडियम क्लोराइड—NaCl 22. कार्बोनेट सोडियम—Na₂CO₃ 23. कैल्शियम कार्बोनेट — CaCO₃ 24. कैल्शियम सल्फेट — CaSO₄ 25. अमोनियम सल्फेट — (NH₄)₂SO

 Introduction to the Human Heart The human heart is one of the most important organs responsible for sustaining life.  It is a muscular organ with four chambers.  The size of the heart is the size of about a clenched fist. The human heart functions throughout a person’s lifespan and is one of the most robust and hardest working muscles in the human body. Besides humans, most of the other animals also possess a heart that pumps blood throughout their body. Even invertebrates such as grasshoppers possess a heart like pumping organ, though they do not function the same way a human heart does. Position of Heart in Human Body The human heart is located between the lungs in the thoracic cavity, slightly towards the left of the sternum (breastbone).  It is derived from the embryonic mesodermal germ layer. The Function of Heart The function of the heart in any organism is to maintain a constant flow of blood throughout the body. This replenishes oxygen and circulates nutrients among the cells

     Important Q&A based on Allusant Gk 1.: - मांसपेशियों में किस अम्ल के एकत्रित होने से थकावट आती है? Ans : - लैक्टिक अम्ल 2.: - अंगूर में कौन-सा अम्ल पाया जाता है? Ans : - टार्टरिक अम्ल 3.: - कैंसर सम्बन्धी रोगों का अध्ययन कहलाता है Ans : - -ऑरगेनोलॉजी 4.: - मानव शरीर में सबसे लम्बी कोशिका कौन-सी होती है? Ans : - तंत्रिका कोशिका 5.: - दाँत मुख्य रूप से किस पदार्थ के बने होते हैं? Ans : - डेंटाइन के 6.: - किस जंतु की आकृति पैर की चप्पल के समान होती है? Ans : - पैरामीशियम 7.: - केंचुए की कितनी आँखें होती हैं? Ans : - एक भी नहीं 8.: - गाजर किस विटामिन का समृद्ध स्रोत है? Ans : - विटामिन A 9.: - निम्न में से किस पदार्थ में प्रोटीन नहीं पाया जाता है? Ans : - चावल 10.: - मानव का मस्तिष्क लगभग कितने ग्राम का होता है? Ans : - 1350 11.: - रक्त में पायी जाने वाली धातु है Ans : - -लोहा 12.: - किण्वन का उदाहरण है Ans : - -दूध का खट्टा होना,खाने की ब्रेड का बनना,गीले आटे का खट्टा होना 13.: - निम्न में से कौन-सा आहार मानव शरीर में नये ऊतकों की वृद्धि के लिए पोषक तत्व प्रदान करता है? Ans : - प

 Important Q&A based on Allusant Gk  Question 1 - Which is the most abundant organic compound in nature?  Ans: Cellulose  Question 2 - Old age is studied under which branch of science?   Ans: Gerantology  Question 3 - Dolomite (CaCO3) is an ore of  Ans - Calcium  Question 4 - Which vitamin is found in citrus fruits?  Ans - Vitamin C  Q5- What is a sound intensity instrument called?  Ans- Audiometer  Question 6 - Who gets the milk sour?  Ans - By bacteria  Question 7 - Which color is the most deviated by prism in the spectrum of white light?  Ans : Purple  Question 8 - What is Regrigerant in a refrigerator?  Ans : Freon  Question 9 - Which bacteria is helpful in making curd from milk?  Ans - Lactobacillus  Question 10 - What is the largest part of the brain of a human?  Ans - Cerebrum   Question  1 1.: - Which acid accumulation in the muscles leads to exhaustion?  Ans: - Lactic acid Question   12.: - Which acid is found in grapes?  Ans: - Tartaric acid Question   13.: - Study of can

The  kidneys  are a pair of bean-shaped organs on either side of your spine, below your ribs and behind your belly.  They help the body pass waste as urine. They also help filter blood before sending it back to the heart. They are located on the left and right in the retroperitoneal space, and in adult humans are about 12 centimetres (4 1/2 inches) in length. They receive blood from the paired renal arteries; blood exits into the paired renal veins.  Each kidney is attached to a ureter, a tube that carries excreted urine to the bladder.  The word “renal” is an adjective meaning “relating to the kidneys” , and its roots are French or late Latin.  Whereas according to some opinions, "renal" should be replaced with "kidney" in scientific writings such as "kidney artery" , other experts have advocated preserving the use of renal as appropriate including in "renal artery" Why are the kidneys important? Your kidneys remove wastes and extra fluid fro