C- El oro d- La pesca
2- El primer ingenio azucarero construido en Puerto Rico fue fundado por:
C- Gregorio Santolaya
b- Jerónimo de Bruselas
C- Juan Ponce de León
d- Tomás de Castellón​

the decreasing neutrality of the u. s. in world war i

hope this : )

confederacy: supported slavery, believed states should be able to nullify federal laws, supported low tariffs

union: everything else

incident infrared radiation is blocked. visible and ultraviolet radiation heat   earth.

earth radiates infrared radiation. infrared radiation is blocked and heats earth. visible and shortwave radiation heat earth.

earth radiates longwave radiation

longwave radiation is reflected downward longwave radiation heats earth