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Our planet’s Our planet’s surface is mostly surface is mostly
ocean !ocean !
Our planet’s Our planet’s surface is mostly surface is mostly
ocean !ocean !
Why?Why?Why?Why?
Most of the Most of the world’s people world’s people live near the live near the
ocean!ocean!
Most of the Most of the world’s people world’s people live near the live near the
ocean!ocean!
Harbors connect Harbors connect us to oceansus to oceans.
Harbors connect Harbors connect us to oceansus to oceans.
How?How?How?How?
Atlantic OceanAtlantic Ocean
Boston Boston
HarborHarbor
Arms of land Arms of land
protect the harbor protect the harbor
from the oceanfrom the oceanA safe placeA safe place
to build a cityto build a city
The Harbor The Harbor Created BostonCreated Boston
The Harbor The Harbor Created BostonCreated Boston
Boston Boston Changed Changed the Harborthe Harbor
Boston Boston Changed Changed the Harborthe Harbor
What is causing
these changes,
natural forces or
people?
1852, Boston
continues to
expand…Population:
148,865