1.: - The accumulation of which acid in the muscles causes fatigue?
Ans :- Lactic Acid
2.: - Which acid is found in grapes?
Ans :- Tartaric acid
3. :- The study of cancer related diseases is called
Ans :--Organology
4.: - Which is the longest cell in the human body?
Ans :- Nerve cell
5.: - Teeth are mainly made of which material?
Ans :- Dentine
6.: - The shape of which animal is similar to the foot slipper?
Ans :- Paramecium
7.: - How many eyes does an earthworm have?
Ans :- None
8.: - Carrot is a rich source of which vitamin?
Ans :- Vitamin A
9. :- In which of the following substances protein is not found?
Ans :- Rice
10.: - How many grams is there in the human brain?
Ans :- 1350
11. :- The metal found in blood is
Ans :- Iron
12. :- Fermentation is an example of
Ans:- Sourness of milk, Formation of edible bread, Sourness of wet flour
13.: - Which of the following diet provides nutrients for the growth of new tissues in the human body?
Ans :- Paneer
14. :- Which of the following is a flying lizard?
Ans :- Draco
15.: - Which is the only snake that builds a nest?
Ans :- King Cobra
16.: - Which is the biggest fish found in India?
Ans :- Whale Shark
17. :- Pulses are a good source of
Ans :- Protein
18.: - Why does desi ghee give fragrance?
Ans :- Due to diacetyl
19. :- Which color has more deflection in the rainbow?
Ans :- Red color
20.: - Who invented the television?
Ans :- J. Ale. Baird
21:- Why does a diamond appear shiny?
Ans :- Due to mass internal reflection
22. :- What is mainly found in 'Gobar gas'.
Ans :- Methane
23.: - Which instrument is used to measure the purity of milk?
Ans :- Lactometer
24.: - Which is the most abundant metal element on earth?
Ans :- Aluminum
25. :- Pearl is mainly made of which material?
Ans :- Calcium Carbonate
26.: - Which element is found in maximum quantity in the human body?
Ans :- Oxygen
27.: - Which type of tissue acts as a protective shield of the body?
Ans :- Epithelium tissue
28.: - Which animal did man first make his pet?
Ans :- Dog
29. :- Which scientist first melted two pieces of ice by rubbing them together?
Ans :- Davy
30.: - Who produces the loudest sound?
Ans :- Tiger
31. :- When sound waves move, they carry with them
Ans :- Energy
32.: - Which part of the Sun is visible during a solar eclipse?
Ans :- Kirit
33.: - How many colors are there in the sun's ray?
Ans :- 7
34. :- Who is the inventor of 'typewriter' (typing machine)?
Ans :- Shoals
35.: - What is vinegar called in Latin language.
Ans :- Acetum
36. :- Used to remove rust stains from clothes
Ans :- -Oxalic Acid
37. :- What causes 'red rot disease' in sugarcane?
Ans :- By fungi
38. :- What is the botanical name of mango?
Ans :- Mangifera Indica
39. :- Chicory powder mixed with coffee powder is obtained
Ans :- - From the roots
40. :- What is the best source of 'Vitamin-C'?
Ans :- Amla