What color do about 75 percent of national flags contain?
red
What is the wearing away of rock by wind, water or gravity called?
Erosion
Whom did Robert E. Lee surrender to at Appomattox?
Ulysses S. Grant
Which world religion has 613 commandments?
Judaism
How many months have 31 days?
7
What body of water did the Romans call "mare nostrum"?
The Mediterranean Sea
The femoral artery is named for a bone in what part of the body?
Upper Leg
From 1919 to 1933, the Weimar Republic was the government of what nation?
Which of these is the hardest mineral on Earth?
Diamond
Viking I and II were spacecraft which NASA sent to ______.
mars
Which body part brings blood back to the heart
Veins
What religion gave us the concept of Nirvana?
Buddhism
Which of these is the last book of the Christian bible?
Revelations
A "crepuscular" animal becomes active at what time?
Dusk
What medical fields deals with blood?
Hematologist