lok maya khadka

1.which of the following source of energy causes the air more polluted ?

• Diesel

• hydropower

• sun

• biogas

2.which of the following is the main source of heat?

• Moon
• Fire
• Wind
• Sun

3.which of the following is the si unit of length?

• second
• liter
• gram
• meter

4.who invented radio?

• Guglielmo Marconi
• Thomas Edison
• Alexander Graham Bell
• Nikola Tesla

5.who is the father of computer?

• Charles Babbage
• Nikola Tesla
• Isaac Newton
• Alan Turing

6.which of the following is the icon for Ms paint?

• A computer monitor
• A calculator
• A camera
• The icon for Ms Paint is a palette with a paintbrush.

7.which is the smallest unit of computer?

• bit
• kilobyte
• megabyte
• byte

8.what kind of mixture is air?

• Heterogeneous mixture
• Homogeneous mixture
• Element
• Compound

9.How many colours are there in a rainbow?

• 5
• 10
• 12
• 7

10.which of the given objects is luminous?

• Sun
• Light bulb
• Candle
• Moon