The Beatles call it quits, the Apollo 13 crew makes it safely back to Earth
1970
Eje is this imaginary line about which the Earth rotates
Axis
This desert in North Africa is the largest in the world
Sahara
Litter, refuse or trash; what a bunch of...
garbage
If your mom says you have a fever with a body temperature of 39, she's using this scale
Celsius
Babe Ruth goes to the Yankees, the 19th Amendment is ratified giving women the right to vote
1920
This "colorful" atmospheric heating phenomenon is efecto invernadero
Greenhouse Effect
Part of the Chihuahuan Desert lies in Chihuahua, one of this country's most prosperous states
Mexico
Describes a book bound by a flexible cover
paperback
This unit can be a measure of weight or of volume, in its fluid form
ounce
Nat King Cole hits No. 1 with "Mona Lisa", NATO turns one year old
1950
In space not even light can escape one of these, agujero negro
Black Hole
This California desert valley was named by gold seekers, many of whom didn't survive the crossing of it
Death Valley
The stock of words used by a particular people; let's see how extensive yours is
vocabulary
For moderately active 12- & 13-year-old boys, the government recommends consuming 2,200 of these units a day
calories
Jeff Probst welcomes the first tribes on "Survivor", Metallica sues Napster
2000
One of these small earthquakes that follows a larger one is un replica
Aftershock
The Patagonian Desert lies west of Buenos Aires in this country
Argentina
Daily Double
QUESTION: You can count on this device, which often uses beads to make things add up
ANSWER: abacus
In Portugal, ask someone how heavy he is & he'll answer you in these units, each 2.2 pounds
kilograms
The U.S. hockey team wins Olympic gold, Lin-Manuel Miranda is born
1980
Compuesto is one of these substances that's composed of 2 or more chemical elements
Compound
The Gobi, the largest desert in Asia, is in southern Mongolia & the northern part of this country
China
The natural environment of an organism, perhaps "for Humanity"
habitat
If the minimum height for a ride is 3'4", you must be this many inches tall to get on
40