01.: – Which part of the sun is visible at the time of solar eclipse?
Ans: – Kirit

2.: – Used to remove rust spots from clothes
Ans: – Oxalic acid

3.: – ‘Red rot disease’ in sugarcane is caused due to
Ans: – by fungi

4.: – Who invented television?
Answer: – J.K. L. Baird

5.: – What type of tissues act as the body’s protective shield?
Ans: – Epithelium tissue

7.: – Which animal did man first domesticate?
Ans: – Dog

8.: – Which scientist first rubbed two pieces of ice and melted it?
Answer: – Dewey

9: – Why does a diamond appear shiny?
Ans: – Due to collective internal reflection

10.: – What is found mainly in ‘dung gas’.
Answer: – Methane

11.: – Which of the following diet provides nutrients for the growth of new tissues in the human body?
Ans: – Cheese

12.: – Which of the following is a flying lizard?
Ans: – Draco

13.: – Which acid is found in grapes?
Ans: – Tartaric acid

14.: – Study of cancer related diseases is called.
Ans: – Oncology

15.: – Which is the only snake nest?
Ans: – King Cobra

16.: – Which is the largest fish found in India?
Answer: – whale shark

17.: – Pulses are a good source of
Ans: – Protein

18.: – Why does aroma come out of native ghee?
Ans: – Due to diacetyl

19.: – Which color deflection is more in the rainbow?
Answer: – Red color

20.: How many colors are there in the ray of sun?
Answer: – 7

21.: – Who is the inventor of ‘typewriter’ (typing machine)?
Ans: – Sholes

22.: – What is called vinegar in Latin language.
Ans: – Assetam

23.: – With which machine the purity of milk is measured?
Ans: – Lactometer

24.: – Which is the highest metal element found on Earth?
Answer: – Aluminum

25.: – The pearl is mainly made up of which substance?
Ans: – Calcium carbonate

26.: – Which element is found in maximum quantity in human body?
Ans: – Oxygen

27.: – What is the botanical name of mango?
Answer: – Mangifera Indica

28.: – Chikori powder mixed with coffee powder is obtained
Ans: – By roots

29.: – What is the best source of Vitamin-C?
Ans: – Amla

30.: – Who produces the highest intensity sound?
Answer: – Tiger

31.: – Which is the longest cell in the human body?
Ans: – Nerve cell

32. – Teeth are mainly made up of which substance?
Ans: – of dentine

33. – Which animal has the shape of foot slippers?
Ans: – Parametium

34. – Protein is not found in which of the following substances?
Ans: – Rice

35. – About how many grams of human brain is there?
Answer: – 1350

36 .: – is a metal found in blood
Ans: – Loha

37 .: – Which acid accumulates in the muscles causes tiredness?
Ans: – Lactic acid

38 .: – Example of fermentation
Ans: – Sourness of milk, formation of food bread, sourness of wet flour

39. – How many eyes does earthworm have?
Ans: – Not a single

40. – Carrot is a rich source of which vitamin?
Answer: – Vitamin A