Diag. Social Studies 8°

Earth planet has three layersCapas de la tierra

• a) mantle, crust and core

• b) crab, mantle and coin

• c) mantis, core and crash

• d) mantle, crab and core

The central part of the planet is theParte central de la tierra

• a) mantle

• b) crust

• c) core

The geological eras are grouped into long periods of time called eons, they are:Eras geológicas agrupadas en dos largos períodos:

• a) Precambrian and phanerozoic

• b) Before Christ and After Christ

• c) Precolombian and Renacentist

The eon phanerozoic is divided into three main geological erasEste se divide en tres eras geológicas

• a) Paleozoic era

• b) Mesozoic era

• c) Historic era

• d) Cenozoic era

• e) Sonic era

Majority of the earth surface is made up of waterMayor parte de la tierra esta formada por agua en un:

• a) 71%

• b) 7%

• c) 17%

Total of water of earth is composed by:El agua en la tierra está compuesta por:

• a) 97% oceans and 3% fresh water

• b) 3% oceans and 97% fresh water

• c) 50% oceans and 50% fresh water

Beaufurt, Baltic, Black, Maditerranean areEstos son:

• a) Oceans

• b) Lakes

• c) Rivers

• d) Seas

Pacific, Atlantic, Indian, Artic, and Antartic areEstos son:

• a) Oceans

• b) Lakes

• c) Rivers

• d) Seas

Are undulations that are formed by an effect of wind that agitates the surface of the seas and oceansOndulaciones formadas por efecto del viento.

• a) Marine currents

• b) Tides

• c) Waves

These are types of climates

• a) humid, dry and cold

• b) winter, summer and autum

• c) sun, cloud, rain