Life Science

No.	Question	Answer
1.	Name the parts which on removal or destruction may cause the death of plant	Roots
2.	The cover of air around the earth is called	Atmosphere
3.	Air occupies	Space & mass
4.	Plants and animals maintain the balance of what in air	Gases
5.	The supporter of combustion in air is	Oxygen
6.	What forms the earth's atmosphere	Air
7.	The major components of air are	Nitrogen & Oxygen
8.	Water is one of the basic constituents of all	Living
9.	The scientific name of Lotus is	Nelumbo
10.	No two human beings are completely	Alike
11.	The process of preparation of food by plants is called	Photosynthesis
12.	All living objects consist of	Cells
13.	The vegetables such as carrot,beet root and radish that you eat are	Roots
14.	Leaves are green because they have	Chlorophy II
15.	Plants manufacture food by the process of	Photosynthesis
16.	From the heart,the blood is transported to all the organs of the body by	Arteries
17.	Which teeth are replaced by the permanent teeth	Milk teeth
18.	The reproductive cell of male is called the	Sperm
19.	The plants use which part of air for their food	Carbon dioxide
20.	Water is one of the basic constituents of all	Plant
21.	Water freezes into ice at	0 degree C.
22.	Water boils at	80 degree C.
23.	The torch cell is a source of which energy	Electrical
24.	Which source of energy wind is?	Renewable
25.	Which energy is released by a transistor	Sound
26.	Energy is always required for doing	Work
27.	Electrical energy is converted mainly into light energy in	Filament
28.	The energy hidden in atoms is called	Atomic
29.	Balance in nature is the balance between the population of	Species
30.	A famous mathematician of ancient India is	Aryabhatta
31.	A substance which can exist as solid,liquid and gas	Water
32.	The power of an electric bulb is marked in	Watts
33.	Water stored in a high-level dam has	Potential energy
34.	The dry cell produces electric energy from	Chemical energy
35.	The unit used for measuring distances between heavenly objects,is	Light Year
36.	Musical instrument in which sound is produced by the vibration of air is	Flute
37.	Carbohydrates are present in	Cane Sugar
38.	The gas used for disinfecting water is	Chlorine
39.	Sand is a compound of	Silicon
40.	A mixture of salt and camphor can be separated by	Sublimation
41.	A magnet can be used to seperate a mixture of	Iron scrap and sulphur
42.	The chemical which is not used for purifying water is	Washing soda
43.	A bird which is active during night is	Owl
44.	Hydrilla is a plant that grows in	Water
45.	A plant which stores food in the root is	Ginger
46.	In most flowers the most colorful part is the	Petal
47.	The temperature of the surroundings is detected by	The Skin
48.	The number of kinds of living organisms on this earth is about	Two & half million
49.	A species of animals means	A group of similar animals
50.	There are some plants which do not have	Leaves
51.	An animal without a special organ for hearing is	Snake
52.	The sense organ in man which are sensitive to chemicals are	Skin & nose
53.	The tallest tree in the world is	The redwood tree
54.	Normally, a housefly lives for about	One year
55.	In the human body urine is formed in	The kidneys
56.	The pancreas in our body is a part of	The digestive system
57.	The blood vessels that we can see just below the skin on the back of our palm are	Arteries & veins
58.	The presence of starch in the leaf is shown by	Iodine
59.	All the cells are similar in structure and function in	A tissue
60.	The source of energy for all living things is	The sun
61.	An animal which cannot take solid food is	Butterfly
62.	Anaemia is usually caused by	Glucose
63.	The simplest form of carbohydrate is	Aminoacid
64.	The smallest unit of a protein is	80-90
65.	The percentage of weight of water in our body is about	C
66.	Scurvy is caused by lack of vitamin	Vitamins
67.	Vegetables are included in our diet because mostly they supply	Vitamins
68.	The most widely seen minerals in the bones are	Calcium and Phosphorus
69.	Disgested food is mostly absorbed through the	Small intestine
70.	The diet of a 2-year old baby should contain more	Protein
71.	Tobacco plant makes nicotine in	The leaves