Plants Convert Carbon Dioxide Into Oxygen Vintage Trade Ad Card

Description

Plants Convert Carbon Dioxide Into Oxygen Vintage Trade Ad Card
NOTE:
THESE ARE NOT POSTCARDS
THEY ARE TRADE/ADVERTISING CARDS.
THEY ARE MUCH SMALLER THAN A STANDARD POSTCARD
AND
THERE IS ADVERTISING TEXT ON THE BACK!
THE CARD DIMENSIONS ARE APPROXIMATELY
2 5/8 '' x 1 3/8 ''  or  6.5 cm. x 3.5 cm.
THIS IS AN ORIGINAL VINTAGE TRADE  ADVERTISING CARD
WHERE DOES OXYGENCOME FROM
Plants developed on this earth
when there was no oxygen.
Plants need a gas called car-
bon dioxide but this gas would
poison human beings if they
inhaled much of it. When
plants take in carbon dioxide
they give out oxygen. All the
oxygen in the air has been
made by plants. When we
breathe in, we take in oxygen
and breathe out carbon
dioxide which the plants con-
vert back into oxygen for us.
Future space travellers may
take small plants with them in
their rocket ships to soak up
the carbon dioxide and turn it
back to oxygen.
NOTE:
THE REVERSE SIDE HAS TEXT
THE CARD DIMENSIONS ARE APPROXIMATELY
2 5/8 '' x 1 3/8 ''  or  6.5 cm. x 3.5 cm.
NOTE:
THE IMAGE ABOVE IS LARGER THAN THE CARD
TO SHOW THE DETAIL.
SEE SCALED IMAGE ABOVE.
IT IS NOT PERFECT AND THIS CARD MAY HAVE
SLIGHT PAPER LOSS
SMUDGING
ROUNDED CORNERS
SURFACE CREASE
NOTE
SEE THE IMAGES ABOVE!
10
WE COMBINE SHIPPING
BUY 1 TO 4 TRADE ADVERTISING CARDS AND THE TOTAL TO SHIP IS
BUY 5 TRADE ADVERTISING CARDS AND SHIPPING IS FREE
NOTE:
ON LARGER INTERNATIONAL ORDERS WE MAY REQUIRE REGISTERD
MAIL AND WILL SPLIT THE COST WITH THE BUYER.
INQUIRE IF CONCERNED!