336 million and 39 million.
What are the populations of the U.S. and Canada, respectively?
This category 5 hurricane devastated New Orleans in 2005.
What is Hurricane Katrina?
They make up the three (or four) subregions of Latin America.
What are Mexico & Central America, the Caribbean Islands, and South America?
It's how the Great Lakes were formed.
What is the melting of super glaciers at the end of the Ice Age, digging out huge holes and filling them with freshwater?
It's the most commonly practiced religion in Canada, the U.S., and all of Latin America.
What is Christianity?
The very first humans to arrive in what would become the Americas came over on a land bridge and kayaks from this continent.
What is Asia?
It is the most important factor in the rapid intensification of a hurricane.
What is ocean water 80 degree farenheit or hotter?
It's the reason that farming is so successful in Mexico and Central America.
What is volcanic ash?
H.O.M.E.S
What are Huron, Ontario, Michigan, Erie, and Superior?
They're just three of the many fruits and vegetables the world did not have access to until colonizers reached the Americas.
What are tomatoes, potatoes, corn, beans, peppers, squash, pumpkins, avocadoes, strawberries, or blueberries?
Warmer climates, large urban cities, and more job opportunities.
Why do most Canadians live within 100 miles of the U.S. border?
Storm surge.
What is ocean water pushed onto land from an approaching hurricane?
It's the second tallest mountain range in the world and forms the border between these two countries.
What are the Andes Mountains and Chile & Argentina?
The effects of D.D.T.
What is a deadly chemical sprayed to kill mosquitoes but poisoned water sources and harmed many other animals?
It's a narrow strip of land connecting two larger bodies of land; one example of this is a Latin American country that is famous for a good reason.
What is an "isthmus", like Panama, which contains the Panama Canal?
They're the three features that create the border between Canada and the United States.
What are the 49th parallel, the Great Lakes, and the St. Lawrence River?
They're the two most damaging factors of a hurricane; one when it's over the ocean, one when it's over land.
What are winds (over ocean) and flooding (over land)?
It's the Latin American country with the largest population and the only one without Spanish as its main language. (Name the language.)
What is Brazil, and Portuguese?
It's how invasive (non-native) species find their way into the Great Lakes.
What is in the ballast water ships take on to steady themselves on the open seas?
It's the difference between point-source-pollution and non-point-source-pollution.
What is pollution from a single source versus pollution from multiple sources?
They are the four cultural traits the U.S. and Canada have in common.
What are an Indigenous population, colonization by Europeans, mostly English-speaking, and large immigrant populations?
The three reasons hurricanes do not pose a threat to California.
What are cold ocean waters, strong winds from the west steering storms away, and very dry high pressure?
It may be the second longest river in the world, but the Amazon River is first in this.
What is the volume (amount) of water carried?
When this caught on fire, it finally prompted the government to create this department.
What is the Cuyahoga River and the Environmental Protection Agency (EPA)?
It's the COMPLETE breakdown (by percentage) of water in the world.
What is 98% saltwater, 2% freshwater, 1% of which is frozen, leaving 1% for us to use?