The Submarine

A submarine floating in or below the sound channel is difficult to detect because most of the noise it makes travels horizontally.


essential
exchange
explanation
facing
fireplace
floating
garage
grabbed
grandmother
habit
happily
heading
hunter
independent
acres
adult
arrangement
attempt
Autumn
border
breeze
brick
calm
canal
Casey
chose
claws
coach
constantly
contrast
cookies
customs
damage
Danny
deeply
depth
declared
diameter
eager
equator
properly
protection
refused
Russian
street