Practice your trivia skills: Science & Nature
CategoriesScience & Nature
161. What is the largest animal currently on Earth?
Orca
Giraffe
Blue Whale
Colossal Squid
162. A positron is an antiparticle of a what?
Electron
Proton
Photon
Neutron
163. What is the standard atomic weight of a Plutonium nucleus?
481
244
128
94
164. How long is a light-year?
501.2 Million Miles
105.40 Earth-years
1 AU
9.461 Trillion Kilometres
165. What is the colour of unoxidized blood?
Red
Blue
Purple
Green
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