Answer:
The major type of air mass moving into the area is maritime polar.
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
Answer:A) The continents move.
B) The continents drifted apart over a long period.
C) The continents were once connected as one landmass.
Explanation:
Continental drift is the theory that continents were once ONE huge landmass and each continent shifted relative to other continents over many years. In 1912, Alfred Wegener named the single landmass Pangea.
According to Wegener, Pangea split about 200 million years ago, giving way to the oceans currently separating the continents. Prior to 1912, some scientists such as Roberto Mantovani had attribute the separation of the continents to volcanic activity, but this has since been proven to be wrong.
Answer:
1 ? is portugal 2? is spain 3rd? france 4? is Britian
Explanation:
look at the languages and magana carta from the pope he gave the spanish the majority of the south america and portugal the what is now brazil hence why they speak portugese
Answer:
2.5 km = 250000 cm
500 ft = 15240 cm
Explanation:
part a
given data
length = 2.5 km
to find out
Convert into cm
solution
we know that 1 m = 100 cm ...............1
and also we know 1 km = 1000 m .................2
sop as that we can say from equation 1 and 2
1 km = 100000 cm
so for 2.5 km = 2.5 × 100000 cm
2.5 km = 250000 cm
and
part b
given data
length = 500 ft
to find out
Convert ft into cm
solution
we know here that
1 ft = 12 inches ..................1
and also we know 1 inch = 2.54 cm ...................2
so we can say
500 ft = 12 × 500 inches
500 ft = 6000 inches
and 500 ft = 6000 × 2.54 cm
500 ft = 15240 cm
