1.World AIDS day is observed on
Ans: December 1
2.The first effective vaccine against polio was prepared by
Ans: Jonas E. Salk.
3.Television was started in the year
Ans: 1959.
4.Where is the national Environment Engineering Research Institute located?
Ans: Nagpur.
5.National Science day is observed on 28th February to commemorate
Ans: The day of declaration of Raman Effect.
6.The science dealing with the study of the heart and its diseases is known as
Ans: Cardiology.
7.India conducted the first nuclear explosion in the year
Ans: May 18, 1974.
8.ECG is an instrument used in the study of
Ans: Heart.
9.When was the first Atomic Energy Commission set up in India?
Ans: August10, 1948
10.What does the abbreviation ANERT stand for
Ans: Agency for non-conventional Energy and Rural Technology
11.The scientist who discovered that the earth revolves round the sun
Ans: Copernicus.
12.Rainbow is caused due to
Ans: Refraction and dispersion
13.Ecology is the branch of science which deals with
Ans: Balance of Nature
14.What is the full form of LPG?
Ans: Liquified Petroleum Gas.
15.Leaves are green due to the presence of
Ans: Chlorophyll
16.What drug does tobacco contain
Ans: Nicotine.
17.A gland known as the gland of emergency
Ans: Adrenal gland.
18.The hormones helps to ripen fruits.
Ans: Ethylene.
19.Milk is an example of
Ans: Suspension.
20.Which sector in India uses coal in maximum quantity?
Ans: Thermal plants.
21.Who discovered Natural Radioactivity?
Ans: Henry Becquerel
22.The main consistent of gobar gas
Ans: Methane.
23.What does talcum power consists of
Ans: Magnesium silicate.
24.The largest flower in the world?
Ans: Rafflesia
25.The smallest bone in the human body?
Ans: Stapes
26.The colouring substance present in bile
Ans: Bilirubin.
27.The acid present in oranges
Ans: Citric acid
28.The density of water is maximum in
Ans: 4 degree Centigrade.
29.The material used in the manufacture of lead pencils
Ans: Graphite.
30.The district in which the central root research institute is situated.
Ans: Thiruvananthapuram.
thank you very much article gave very valuable information
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