Is north America and south America one continent?

Is north America and south America one continent?

Depending on the convention and model, some continents may be consolidated or subdivided: for example, Eurasia is most often subdivided into Europe and Asia (red shades), while North and South America are sometimes recognized as one American continent (green shades).

Who developed the first writing system?

The earliest writing systems evolved independently and at roughly the same time in Egypt and Mesopotamia, but current scholarship suggests that Mesopotamia’s writing appeared first. That writing system, invented by the Sumerians, emerged in Mesopotamia around 3500 BCE.

How many different types of trees are there in the world?

There are about 750 types of trees in North America and about 100,000 in the world. Many of those are endangered. Those numbers count both conifer (cone bearing) trees and deciduous trees. You can find the names of many conifers on this site … just click Tree Types in the Elementary section.

How many ridges are on a quarter?

There are 118 ridges around the edge of a Roosevelt dime, 119 ridges around the edge of a quarter, and 150 ridges around the edge of a Kennedy half dollar.

How much do Vodka sales help the Russian government?

Ten percent of the entire Russian government’s revenue comes from the sale of vodka.

How long does it take for a baby to walk?

She’ll learn to sit, roll over, and crawl before moving on to pulling up and standing at about 9 months. From then on, it’s a matter of gaining confidence and balance. Most babies take their first steps sometime between 9 and 12 months and are walking well by the time they’re 14 or 15 months old.

What state is bordered by only one other state?

Maine is the only state to border exactly one other state (New Hampshire to the west). Maine is the easternmost state in the United States both in its extreme points and its geographic center.

How many bees does it take to make a tablespoon of honey?

A hive of bees must fly 55,000 miles to produce a pound of honey. One bee colony can produce 60 to 100 pounds of honey per year. An average worker bee makes only about 1/12 teaspoon of honey in its lifetime.