Which of the following should be less, so that the top most carnivores will get more energy ?
A) Producers
B) Trophic levels
C) Consumers
D) Moss
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Which of the following age children should get free and compulsory education?
(D) 6-14 years
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The long teeth present in carnivores are ……
The long teeth present in carnivores are Canines
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i) Getting 7 on the top when a dice is rolled ii) Getting head on the top while tossing a coin
C) Both (i) & (iv)
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Correct statement of Charles Elton. A) Carnivores at the top of the pyramid.
(D) Both A and C
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If the area is less, then the value of pressure A) less B) more
Correct option is B) more
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1. (a) Is ammonia more dense or less dense than air? (b) What property of ammonia is demonstrated by the Fountain Experiment? (c) Write the balanced equation for the reaction between ammonia and sulphuric acid. 2. Pick the odd member from the list giving reasons: (a) Ammonia, sulphur dioxide, hydrogen chloride, carbon dioxide. (b) Copper oxide, aluminium oxide, sodium oxide, magnesium oxide. 3. Give reasons for the following : (a) Liquid ammonia is used as a refrigerant in ice plants. (b) Aqueous solution of ammonia is used for removing grease stains from woollen clothes. (c) Aqueous solution of ammonia gives a pungent smell. (d) Aqueous solution of ammonia conducts electricity.
(1) (a) ammonia is less dense than air (b) solubility in water (c) 2NH3 + H2SO4 → (NH4)2SO4 (2) (a) Ammonia → because - NH3 is basic while, SO2,HCl and CO2 are acidic oxides. (b) CuO,...
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Q. 4. Show the following details with suitable index in the world map given below: (1) Area of high salinity in Atlantic Ocean (2) Area of less salinity near India (3) Dead Sea (4) Baltic Sea (5) Part of Red Sea having less salinity.
37000 32000 34000
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Steam produces more severe burns than boiled water, because steam contains energy of ……………. more than that of boiled water.
B) latent heat of vapourisation
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Shreya, a manager feels that the employees should get enough time to adapt to a new environment to slow results. By doing so she is following a princi
Stability of personnel
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Write whether the following statements are true or false . (i) Communties with more species tend to be more stable that those with less species. (ii)
(i) True (ii) False (iii) True (iv) False
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