The document discusses smoke signals, one of the earliest forms of communication used by humans. Smoke signals involved making fires and controlling the sequence of the smoke released to transmit messages over open, dry areas. However, smoke signals could not be used when it was raining or windy and required skill to start fires, so not all people were able to use this primitive communication method.

1. Members:
Ana Echeverrìa # 5
Dayana Lòpez #18
Natalia Ramírez #23
Sasha Sánchez # 27
11-C
THE SMOKE SIGNALS

2. The smoke signals
were one of the first
communication
methods of the
humanity.

3. It consisted of
making a fire and
control the
sequence the
output stream of
smoke with leave
to transmit a
message.

4. Only can be
perfomed in open
areas and
ranches dry.This
mean can help in
the ocean,desert.

5. You could not use it
when it rains or these
is a lot of breeze. Not
all people are not able
to the smoke signals
because it is difficult
to fire and are
primitive.