A. 30,000 units because the total energy decreases
They explored and colonized in North America mainly for Gold
Answer:
Society in Ancient India was organized in four classes known as <em>varnas</em>.
Explanation:
The Vedas (important sacred texts) divided Ancient India into the following four <em>varnas</em>:
<u>Brahmin</u> - Teachers, spiritual advisors, and priests. They gathered knowledge and shared it with others.
<u>Kshatriya</u> - Rulers and warriors of society. Their job was to protect others and keep peace.
<u>Vaishya</u> - Traders, skilled artisans, and farmers.
<u>Shudra</u> - Laborers and servants.
Anyone could change ranks if they wanted to. (A <u>shudra</u> could become a <u>brahmin</u>, etc.).
I hope it helps you!
Answer:
Urban commuting evolved to mass and rapid transit in the late 1800s.
Explanation:
The Industrial Revolution led to commuting. Before that most people lived and worked in the countryside. Travel was rarely needed and it was expensive. However, throughout centuries the concept of commuting has existed and improved till today.
By the late 1800s, people needed a form of mass transit to make commuting efficient. In 1867, elevated railroads were created above urban neighborhoods, laying the groundwork for the first form of rapid transit. After that in 1888 the world's first electric streetcar was used in commuting. Each streetcar was powered by multiple-unit control, allowing for greater speed and acceleration.
