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