Hemispheres

Ireland is in the Northern Hemisphere (being north of the Equator), and is also in the western hemisphere (being to the west of the Prime Meridian, the line of zero longitude that runs from pole to pole and passes through London, UK)

Ghana is in the Northern hemisphere (not the southern, as is commonly reported), and the theoretical region known as the Western hemisphere.

Northern

The Philippine Sea is in both the Eastern hemisphere and the Northern Hemisphere.

north

Siberia

Mexico is in the Northern Hemisphere as it lies North of the Equator. Mexico is also in the Western Hemisphere as it lies to the West of the Prime Meridian.
The Equator is zero Latitude, and the Prime Meridian is zero Longitude.

North America (which comprises Canada, the USA and Mexico) is the Northern section of the huge Continent of The Americas, which serves to divide the Atlantic and Pacific Oceans. To it's East lie the West Indies, Cuba and several small islands including the British dependency of Bermuda, and then on the other side of The Atlantic Ocean , Western Europe (beginning with the islands of The Azores, which are a Portugese dependency). To it's West is the vast expanse of the Pacific Ocean, broken only by the Hawaiian Islands and some smaller Pacific isles until you come to Japan and the islands of Micronesia, which mark the beginning of Indo-China. North America is entirely in the Northern Hemisphere.

England is in Europe and the Northern Hemisphere. However, because the 0 degrees Longitude line passes through the London suburb of Greenwich, it is also in the Eastern Hemisphere and the Western Hemisphere.

The western-most of the Aleutian Islands, which are part of Alaska, extend past 180o.

New Mexico is in the northern hemisphere.

Germany is in both the eastern and northern hemispheres.

No. Egypt is in the northern and eastern hemispheres.

Mexico is in the northern and western hemispheres.
northern

Spain is north of the equator so it is in the northern hemisphere. The Prime Meridian runs through Spain so it is in both the eastern, and western, hemispheres, but it is predominantly in the western hemisphere.

The Weddell Sea is in the southern hemisphere.

The Appalachian Mountains are in the eastern United States Kentucky, Tennessee, Virginia, Maryland, West Virginia, and North Carolina.

California is in two hemisphers: northern and western. A hemisphere is half of a ball, so the earth can be cut in half either of two ways:

North & South -- above and below the equator; East & West -- hmmm... this gets tricky because of politics. Generally, the divide between east & west runs through Istanbul (originally named Byzantium and later Constantinople), a major city in Turkey, and "somewhere" out in the Pacific ocean.

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The Bosporus Strait and the Sea of Marmara.

If you resubmit this question, please be more specific (perhaps by defining "US of Florida").

Any world map will show you the equator, which divides the northern and southern hemispheres.

northern

The flip line of seasons is the equator. So Winter in South America is during Summer in North America. June - September = Winter in South America.

Antarctica has no land in the northern hemisphere.

Bolivia is in South America, bordering North and East by Brazil. It supposedly should be in the Southern and Western Hemisphere.

Brazil is located in the western, northern and southern hemispheres. The Equator and the Tropic of Capricorn pass through Brazil. It covers almost 50 percent of South America. The longitude and latitude of Brazil are 10 degrees South and 55 degrees West.