1. during what century was artificial food coloring invented and introduced in the u. s., gradually replacing
natural coloring?
2. what did the nation of north korea launch last weekend, resulting in national pride and international
condemnation?
3. name the candidate won tuesday's republican primary in new hampshire.
4. name the candidate won tuesday's democratic primary in new hampshire.
5. on what island did a magnitude-6.4 earthquake strike last weekend, killing dozens of people and leveling an
apartment building?
6. at a cost of $765 million, morocco has invested heavily in a massive plant that produces what?
7. name one of the two u. s. states that are holding presidential contests on february 20.
8. ligo observatories in louisiana and washington are trying to detect theoretical space-time "ripples" known
as what?
9. international researchers say 2015 was a record year for what kind of animal-related event, with 98 incidents
recorded worldwide?
10. what is the name of syria's largest city, a place that has been the front line for much of the fighting in the