1. Water changes to ice at ___________.a) 0ºC b) 100ºC c) 102 ºC d)

1. Water changes to ice at _____.a) 0ºC b) 100ºC c) 102 ºC d) 98ºC2. Which of the following is a water pollutant? _.a) Lead b) Alum c) Oxygen d) Chlorine3. Red ant sting contains _.a) Acetic acid b) Sulphuric acid c) Oxalic acid d) Formic acid4. The main component of Natural gas is _.a) Methane b) Ethane c) Propane d) Butane5. MRI stands for _.a) Magnetic resonance imaging b) Magnetic running imagec) Magnetic radio imaging d) Magnetic radar imaging6. Sound waves travel very fast in _.a) Air b) Metals c) Vacuum d) Liquids7. What kind of musical instrument is a sitar? _.a) String instrument b) Percussion instrumentc) Wind instrument d) None of these8. Chandrayaan-I was launched on _____.a) 22nd October 2008 b) 22nd July2019c) 8th November 2008d) 22nd October 2019

Answer»

Answer:

1.0 DEGREES Celsius

2.lead

6.vaccum

7.string instrument

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