Answer:
B) People who live in a particular area
Answer:
A spiral galaxy consists of a flattened, revolving disk with very fast rotating arms. The most popular type of galaxy is an elliptical galaxy, which has a roundish shape and shows little or no formation of stars. A galaxy with no specified shape that has very young stars is an irregular galaxy.
Explanation:
Since the central bulge looks elongated, like a bar, some spiral galaxies are what we call "barred spirals." ... Like spiral galaxies, they have a bulge and a halo, but they do not have the flat disk of stars. Elliptical stars appear to be older. Irregular galaxies have no shape or structure familiar to them.
Answer: (1) ridge (2) trough
Explanation:
A ridge is an elongated area of relatively high pressure extending from the center of a high-pressure region. A trough is an elongated area of relatively low pressure extending from the center of a region of low pressure.
Oenopides was the first to discover and measure the tilt.
He came up with about 24 degrees around 480BCe using geometry and measurements of sun angles at several times of year.
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