It has a border with brazil and argentina and a coastline on the atlantic

If you’re asking for a country it is Uruguay

PS. Check out a political map

Uruguay has a border with Brazil and Argentina and a coastline on the Atlantic.

Explanation:

Uruguay is the 'South American country' that lies on the eastern edge and is roughly situated in the southeastern part of the continent. It is the 'third smallest country' in the continent but has a considerably long coastline compared to the size of the country. Uruguay is one of the South American nations with the least forest cover. The climate of the country resembles that of the Mediterranean.

2cool and cold temperature unless its an ever green tree 

Answer the above statement is correct (true);