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