<span>The most volcanically active belt on Earth
is known as the Ring of Fire, a region of subduction zone
volcanism surrounding the Pacific Ocean. Subduction zone volcanism
occurs where two plates are converging on one another. One plate
containing oceanic lithosphere descends beneath the adjacent plate,
thus consuming the oceanic lithosphere into the earth's mantle.
This on-going process is called subduction. As the
descending plate bends downward at the surface, it creates a large
linear depression called an oceanic trench. These
trenches are the deepest topographic features on the earth's surface.
</span>
<span>The crustal portion of the subducting
slab contains a significant amount of surface water, as well as
water contained in hydrated minerals within the seafloor basalt.
As the subducting slab descends to greater and greater depths,
it progressively encounters greater temperatures and greater pressures
which cause the slab to release water into the mantle wedge overlying
the descending plate. Water has the effect of lowering the melting
temperature of the mantle, thus causing it to melt. The magma
produced by this mechanism varies from basalt to andesite in composition.
It rises upward to produce a linear belt of volcanoes parallel
to the oceanic trench, as exemplified in the above image of the
Aleutian Island chain. The chain of volcanoes is called an island
arc. If the oceanic lithosphere subducts beneath an adjacent
plate of continental lithosphere, then a similar belt of volcanoes
will be generated on continental crust. </span>
France is the birthplace of cinema and was responsible for many of its significant contributions to the art form and the film-making process itself.[3] Several important cinematic movements, including the Nouvelle Vague, began in the country. It is noted for having a particularly strong film industry, due in part to protections afforded by the French government.[3]
Apart from its strong and innovative film tradition, France has also been a gathering spot for artists from across Europe and the world. For this reason, French cinema is sometimes intertwined with the cinema of foreign nations. Directors from nations such as Poland (Roman Polanski, Krzysztof Kieślowski, and Andrzej Żuławski), Argentina (Gaspar Noé and Edgardo Cozarinsky), Russia (Alexandre Alexeieff, Anatole Litvak), Austria (Michael Haneke), and Georgia (Géla Babluani, Otar Iosseliani) are prominent in the ranks of French cinema. Conversely, French directors have had prolific and influential careers in other countries, such as Luc Besson, Jacques Tourneur, or Francis Veber in the United States.
Another element supporting this fact is that Paris has the highest density of cinemas in the world, measured by the number of movie theaters per inhabitant,[4] and that in most "downtown Paris" movie theaters, foreign movies which would be secluded to "art houses" cinemas in other places are shown alongside "mainstream" works. Philippe Binant realized, on 2 February 2000, the first digital cinema projection in Europe, with the DLP CINEMA technology developed by Texas Instruments, in Paris.[5][6][7] Paris also boasts the Cité du cinéma, a major studio north of the city, and Disney Studio, a theme park devoted to the cinema and the third theme park near the city behind Disneyland and Parc Asterix.[8]
France is the most successful film industry in Europe in terms of number of films produced per annum, with a record-breaking 300 feature-length films produced in 2015.[9] France is also one of the few countries where non-American productions have the biggest share: American films only represented 44.9% of total admissions in 2014. This is largely due to the commercial strength of domestic productions, which accounted for 44,5% of admissions in 2014 (35.5% in 2015; 35.3% in 2016).[10] Also, the French film industry is closer to being entirely self-sufficient than any other country in Europe, recovering around 80–90% of costs from revenues generated in the domestic market alone.[11]
Sub-Saharan Africa<span> is, geographically, the area of the continent of </span>Africa<span> that lies south of the </span>Sahara<span> Desert. Politically, it consists of all </span>African<span> countries that are fully or partially located south of the </span>Sahara<span> (excluding Sudan, even though Sudan sits in the Eastern portion of the </span>Sahara<span> desert).</span>
Factors of Production and Competition (honorable mentions are Accumulation of Capital and Private Property)
