Fill in the blanks: (10 x 1 = 10) 1) __________ are used for the preservation of food. 2) __________ are chemicals that provide nutrients to crops and increase their production. 3) The products obtained from petroleum are called __________. 4) __________ is the system of acquiring knowledge by observation and experimentation. 5) The word ‘scientia’ means __________. 6) The __________ of an element is the abbreviation of its full name. 7) Natrium is the Latin name of __________. 8) The symbol of cobalt is __________. 9) The molecular formula of water __________. 10) The combining capacity of an element is known as its __________.
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1) - Modern methods
2) - Chemical fertilizers
3) - petroleum products
4) - Science
5) - knowledge
6) - first letter
7) - Sodium
8) - Co
9) - H20
10) - valency
Explanation:
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Answer:
Ans. as follows:
Ans. as follows:1) canning food
Ans. as follows:1) canning food2) Fertilizers
Ans. as follows:1) canning food2) Fertilizers3)LPG
Ans. as follows:1) canning food2) Fertilizers3)LPG4) science
Ans. as follows:1) canning food2) Fertilizers3)LPG4) science5) knowledge
Ans. as follows:1) canning food2) Fertilizers3)LPG4) science5) knowledge6) symbol
Ans. as follows:1) canning food2) Fertilizers3)LPG4) science5) knowledge6) symbol7)sodium
Ans. as follows:1) canning food2) Fertilizers3)LPG4) science5) knowledge6) symbol7)sodium8) Cobalt=Co
Ans. as follows:1) canning food2) Fertilizers3)LPG4) science5) knowledge6) symbol7)sodium8) Cobalt=Co9)H2O
Ans. as follows:1) canning food2) Fertilizers3)LPG4) science5) knowledge6) symbol7)sodium8) Cobalt=Co9)H2O10) valency
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