Question

1. Water changes to ice at ___________.

a) 0ºC b) 100ºC c) 102 ºC d) 98ºC

2. Which of the following is a water pollutant? ___________.

a) Lead b) Alum c) Oxygen d) Chlorine

3. Red ant sting contains ___________.

a) Acetic acid b) Sulphuric acid

c) Oxalic acid d) Formic acid

4. The main component of Natural gas is ___________.

a) Methane b) Ethane c) Propane d) Butane

5. MRI stands for ___________.

a) Magnetic resonance imaging

b) Magnetic running image

c) Magnetic radio imaging

d) Magnetic radar imaging

6. Sound waves travel very fast in ___________.

a) Air b) Metals c) Vacuum d) Liquids

7. What kind of musical instrument is a sitar? ___________.

a) String instrument b) Percussion instrument

c) Wind instrument d) None of these

8. Chandrayaan-I was launched on ___________.

a) 22nd October 2008

b) 22nd July2019

c) 8th November 2008

d) 22nd October 2019​

Answer 1

Answer:

1.0 degrees Celsius

2.lead

6.vaccum

7.string instrument

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Answer 2

a,d,c,h,d,g,s,e,t,t,tw,t,y,I,j,s,