The oceanic crust is made up of basalt while the continental crust is made up of granite. The oceanic crust is thinner while the continental crust is much thicker. The oceanic crust is denser than the continental crust. The continental crust has greater buoyancy than the oceanic crust.
When looking up at the clouds, you can usually make out different shapes and figures with cumulus clouds.
Answer;
The Olmecs were the earliest known major Mesoamerican civilization. Following a progressive development in Soconusco, they occupied the tropical lowlands of the modern-day Mexican states of Veracruz and Tabasco. It has been speculated that the Olmecs derived in part from the neighboring Mokaya or Mixe–Zoque cultures. Wikipedia
Dates: c. 2,500 - 400 BCE
Major sites: La Venta, Tres Zapotes, Laguna de los Cerros
Period: Preclassic Era
Followed by: Epi-Olmecs
Geographical range: Veracruz, Mexico