What is the largest organ of the human body?
heart
skin
spleen
large intestine
In the initials of the federal agency known as NASA, what does the first "A" stand for?
Aerospace
Aeronautics
Academy
Administration
What ancient civilization built the Machu Picchu complex in Peru?
Inca
Olmec
Maya
Aztec
The Statue of Liberty was a gift to the US from where?
Great Britain
Spain
Italy
France
What do you call a scientist who studies rocks?
proctologist
archaeologist
paleontologist
geologist
The Great Sphinx in Egypt has the head of a man and the body of which species of animal?
lion
bear
camel
dog
What is the most abundant element in the universe?
carbon
hydrogen
oxygen
helium
