B: China and India both have a population around 1.5 billion people so in total they have around 3 billion people combined! That is more than the continent of Africa and North America combined!
Answer:
D. supermassive black hole
Explanation:
Almost every galaxy, including our Milky Way, has a supermassive black hole at its center.
<u>-TheUnknownScientist</u>
Answer:
The United States and Canada
Explanation:
Because of the connection between Canada and Alaska, the USA and Canada share the longest border in the world, at 8,893 kilometers long.
If you are in the northern hemisphere, then the angle between Polaris and
your northern horizon is always within about 1/3 degree of your north latitude.
For many purposes, it's close enough to just figure that the elevation of Polaris
above your northern horizon <u>IS</u> your north latitude.
Sadly, it's a different story if you are in the southern hemisphere ... Polaris is
never visible from there at all.