A) Fast flowing, narrow air currents in the atmosphere
B) Static zones of high pressure in the stratosphere
C) Slow moving, wide air currents in the ocean
D) Vertical shafts of cold air near the poles

A) Within the Earth's core
B) Near the altitude of the tropopause
C) Near the surface of the Earth
D) At the edge of the exosphere

A) Meridional (north to south)
B) Westerly (west to east)
C) Easterly (east to west)
D) Circular (around the equator)

A) 10,000 ft
B) 30,000 ft
C) 50,000 ft
D) 5,000 ft

A) African easterly jet
B) Equatorial smoke stream
C) Polar-night jet
D) Subtropical jet

A) Volcanic eruptions
B) The Coriolis effect
C) El Niño–Southern Oscillation
D) Tidal forces

A) To increase air speed for safety
B) To maintain communication with ground control
C) To reduce flight times and fuel consumption
D) To avoid turbulence at high altitudes

A) The American Civil War
B) The Cold War
C) World War I
D) World War II

A) The Moon
B) Jupiter
C) Mercury
D) Mars

A) Heinrich Seilkopf
B) Elias Loomis
C) Wasaburo Oishi
D) Reid Bryson

A) Polar vortex
B) Subtropical current
C) Equatorial smoke stream
D) Strahlströmung

A) It was censored by the Japanese government
B) He died before publishing his findings
C) It was published in Esperanto
D) His data was proven to be incorrect

A) Amelia Earhart
B) Charles Lindbergh
C) Reid Bryson
D) Wiley Post

A) Elias Loomis
B) Heinrich Seilkopf
C) Wasaburo Oishi
D) Wiley Post

A) 300 mph
B) 250 mph
C) 50 mph
D) 110 mph