<span>Flow maps show how objects move between different areas. They are a type of thematic map, which look at a particular theme or topic. Flow maps often represent movement of goods or weather processes. A physical process that is commonly represented on and tracked by such maps is wind patterns.</span>
Answer:
The main plant life is desert shrubs and grasses.
Explanation:
Answer:
F Anthracite (the hardest coal)
Explanation:
Coal is a sedimentary rock that is formed from plant materials. These plant materials must have been trapped and compacted in an environment where they are not able decay. Such an environment is a swamp.
The first grade of coal that forms initially in such an environment is called PEAT. Peat is soft coal that still contains some plant materials. It has a high moisture content and the amount of carbon is still quite low.
With increasing pressure and compaction, PEAT grades into LIGNITE which has more carbon atoms in it. Lignite is more combustible although it is quite soft too. Lignite grades into SUB-BITUMINOUS coal and then BITUMIOUS coal.
The highest grade of coal is ANTHRACITE which is a hard coal. It has very little moisture content and rich carbon percentage in it. Anthracite yields more energy compared to other forms of coal. Anthracite is basically coal that forms at the greastest pressure. Beyond this pressure, a metamorphic transformation occurs and the coals changes to graphite.
Based on increasing pressure:
PEAT< LIGNITE< BITUMINOUS COAL < ANTHRACITE
The physical feature of harbors in the northeast, which allowed for trading between countries. This trade in turn boosted the economy adding to industrialization.
Answer:
Youngest: Niger
1. Niger — 50.12% under 15.
Oldest: Japan
Japan has the highest old-age dependency ratio of all OECD countries – there is one person over 65 for every two people between the ages of 20 and 64.
Explanation:
