Brunei's greatest export was petroleum.
Answer:
Informal employment has grown rapidly in some cities due to the point that the population of some cities are rrapidly increasing in population, therefore there are not enough proper jobs for the population so some have to resort to informal employment.
Explanation:
A megalopolis is A. a large city surrounded by many smaller suburbs.
An example of a megalopolis could be New York - it is a huge urban area which is surrounded by a lot of smaller areas which together make what New York is today.
Answer: was known as early as Pythagoras (580-500 B.C.E.)
Explanation: The "realization" that the earth was spherical has been mentioned early in by Greek philosophers.
Even Armenian scientist Anania Shirakatsi (610-685 AD) subscribed to the idea of a spherical Earth.
That was thanks to scientists, philosophers and mathematicians who, as early as around 600 B.C., made observations that Earth was round. Using calculations based on the sun’s rise and fall, shadows and other physical properties of the planet, Greek scholars like Pythagoras and Aristotle determined that the planet is actually a sphere.