1 - Refraction is due to:
2 - To which country does the .ie domain suffix belong?
3 - For what accomplishment did Einstein receive a Physic Nobel Prize?
4 - How many pairs of chromosomes does a human usually have?
5 - Which of these is a self propagating, self replicating computer program?
6 - Which of these is heavier ?
7 - What is El Nino?
8 - Chondrites, carbonaceous chondrites, ataxites and hexahedrites are all types of what?
9 - What are the 4 Galilean Satellites?
10 - What is the sun expected to become at the end of its life?
11 - Who first observed the moons of Jupiter?
12 - Richard Feynman is a famous:
13 - What is a micro-kernel?
14 - Which is not a computer graphics file standard?
15 - What does the acronym ASCII stand for?
16 - What is the speed of light?
17 - Which of the decimal number below corresponds to the binary number 00101010?
18 - Roughtly how long ago did the Sun form?
19 - Brass is an alloy of which two metals?
20 - What is the name of Pluto's satellite?
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