coast; Kalahari
Desert in east

Nauru
sandy beach rises to fertile ring around raised coral reefs
with phosphate plateau in center

Navassa Island
raised coral and limestone plateau, flat to
undulating; ringed by vertical white cliffs (9 to 15 m high)

Nepal
Tarai or flat river plain of the Ganges in south, central hill
region, rugged Himalayas in north

Netherlands
mostly coastal lowland and reclaimed land (polders);
some hills in southeast

Netherlands Antilles
generally hilly, volcanic interiors

New Caledonia
coastal plains with interior mountains

New Zealand
predominately mountainous with some large coastal plains

Nicaragua
extensive Atlantic coastal plains rising to central
interior mountains; narrow Pacific coastal plain interrupted by
volcanoes

Niger
predominately desert plains and sand dunes; flat to rolling
plains in south; hills in north

Nigeria
southern lowlands merge into central hills and plateaus;
mountains in southeast, plains in north

Niue
steep limestone cliffs along coast, central plateau

Norfolk Island
volcanic formation with mostly rolling plains

Northern Mariana Islands
southern islands are limestone with level
terraces and fringing coral reefs; northern islands are volcanic

Norway
glaciated; mostly high plateaus and rugged mountains broken
by fertile valleys; small, scattered plains; coastline deeply
indented by fjords; arctic tundra in north

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

Palmyra Atoll
very low

Panama
interior mostly ste