How did Spain benefit from the 1494 Treaty of Tordesillas? The treaty gave Spain exclusive access to the Americas.
The treaty split the Americas equally between Spain and Portugal.
The treaty let Portugal settle most of the Americas.
The treaty kept Portugal out of most of the Americas.

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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