Subject - Science
Section A (115)
tiple choise Question-
Which of the following can heated and remoulded into any shape.
a. Polythene
b. PVC
c.Nylon
d. All of these
Vhich of the following has the lowest ignition temperature?
1. Petrol
b. kerosene
c. coal
d. LPG
he flying machine offering the least frictional force should be.
a. Irregular
b. tree like c. symmetrical d. streamlined
Which of the following techniques of irrigation should be used to save water?
Canal irrigation b. drip irrigation c. water wheel d. none
Water containing high salt concentration can be purified by
a.boiling
b. filtration c. uv radiation d. reverse
e one word answer for these following question.
motion of any object.
Answers
Answered by
0
Answer:
d
a
a
d
movement
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Answered by
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Answer:
1 Thermoplastic polymers can be repeatedly heated and moulded into any desired shape.
2 Mustard oil has the lowest ignition temperature among the given list
3 flying machine offering least frictional force , should be Irregular tree like Symmetrical with many arms Streamlined.
4 Drip irrigation
5reverse osmosis
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