Answer:
Agriculture allowed people to stay in one place, and increased food production caused the population density to expand far beyond levels that could be sustained by hunting and gathering alone. This growth in population density provided a critical mass of people to sustain and spread contagious infectious diseases.
Answer: D. It can melt to a depth of a few meters in summer, then refreeze in winter.
Explanation:
Permafrost is ground which remains frozen for two or more years. Permafrost consists of soil, rock and sand fused together by ice. Mostly found in areas in high altitude, the Arctic, Antarctica, it is common in periglacial environments where temperatures are below freezing
.
The topmost layer of permafrost can melt in summer and refreeze in winter. This thawing and refreezing produces a ground pattern called columnar joints similar to the one formed when molten lava cools.
Answer:
Latitude are the lines parallel with the equator, both above and below.
Longitude are the lines vertical from pole to pole, measured from the Prime meridian.
They are measuring lines used for locating places on the surface of the Earth. They are angular measurements, measured as degrees of a circle. A circle contains 360°. Each degree can be divided into 60 minutes, and each minute is divided into 60 seconds.
One degree of latitude equals 364,000 feet , one minute equals 6,068 feet, and one-second equals 101 feet.
One-degree of longitude equals 288,200 feet, one minute equals 4,800 feet, and one second equals 80 feet.
Answer:
Knowing others is intelligence; knowing yourself is true wisdom. mastering others is strength; mastering yourself is true power. if you realize that you have enough, you are truly rich, "And the cause of not following your heart, is in spending the rest of your life wishing you had."
Explanation:
I need points so SORRY!
<span>False: They're all Constitutional Monarchs with no real political power, so don't rule as such and are not "acting monarchs."
I hope this helps:)</span>
