They weren't as accurate as they could be, in fact some were just based off of educated guesses.
Answer:
Atlantic Ocean
Explanation:
Null Island is a name for the point on the Earth's surface where the prime meridian and the equator cross, located in international waters in the Gulf of Guinea (Atlantic Ocean) off the west African coast. In the WGS84 datum, this is at zero degrees latitude and longitude (0°N 0°E), and is the location of a buoy.
Answer:
A. Danube river is the answer.
Over the past million years, Earth's globally averaged surface temperature has risen and fallen by about 5˚C in ice-age cycles, roughly every 100,000 years or so (Figure 2.1a).
The United States is located in North America in the Western Hemisphere. It spans a large amount of the continent, so it covers many areas with unique climates.
The Northeast has a lot of forest cover, and encounters very diverse climates throughout the year, from bitter winters to blistering summers, and have even experienced hurricanes.
The Southeast is generally mild, and experiences warm weather year round. The further south you go, the warmer it gets. You also see more bayous and swamps in the south. The northern ends of the Southeast such as North & South Carolina can experience some snow and colder weather in the winter.
The Midwest is also mild, and generally flat, which makes it ideal for agriculture.
As you go west, you will find more mountainous regions, as well as arid desert landscapes. The Southwest is the pinnacle of these desert landscapes, seeing hot weather in the day, and cold weather in the night, with high temperatures year round.
And finally, the Northwest is a mild climate, with high mountains and abundant rain.
