Oman
central desert plain, rugged mountains in north and south
Pacific Ocean
surface currents in the northern Pacific are dominated
by a clockwise, warm-water gyre (broad circular system of currents)
and in the southern Pacific by a counterclockwise, cool-water gyre;
in the northern Pacific, sea ice forms in the Bering Sea and Sea of
Okhotsk in winter; in the southern Pacific, sea ice from Antarctica
reaches its northernmost extent in October; the ocean floor in the
eastern Pacific is dominated by the East Pacific Rise, while the
western Pacific is dissected by deep trenches, including the Mariana
Trench, which is the world's deepest
Pakistan
flat Indus plain in east; mountains in north and northwest;
Balochistan plateau in west
Palau
varying geologically from the high, mountainous main island of
Babelthuap to low, coral islands usually fringed by large barrier
reefs
Panama
interior mostly steep, rugged mountains and dissected, upland
plains; coastal areas largely plains and rolling hills
Papua New Guinea
mostly mountains with coastal lowlands and rolling
foothills
Paracel Islands
mostly low and flat
Paraguay
grassy plains and wooded hills east of Rio Paraguay; Gran
Chaco region west of Rio Paraguay mostly low, marshy plain near the
river, and dry forest and thorny scrub elsewhere
Peru
western coastal plain (costa), high and rugged Andes in center
(sierra), eastern lowland jungle of Amazon Basin (selva)
Philippines
mostly mountains with narrow to extensive coastal
lowlands