Which body of water is to the east of central america? atlantic ocean pacific ocean caribbean sea arctic ocean

Costa Rica is located on the isthmus between the North and South America and like all the countries in this Isthmus it has the Atlantic Ocean to the east and the Pacific Ocean to the West. However to the immediate east of it is the Carribean Sea, which is part of the Atlantic Ocean (d is the correct answer)

Explanation:

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally