2. According to this video, what made semipermanent and then permanent villages possible?

a. Changes in temperature, followed by the development of agriculture
b. The development of agriculture, followed by the development of techniques such as irrigation and soil tilling
c. Domestication of animals, followed by the development of new techniques for food storage and preparation
d. Increasing populations of animals to hunt, followed by increasing precipitation
3. When did modern cities first appear?
a. Modern cities developed soon after agriculture was developed.
b. Modern cities developed once efficient transportation developed.
c. Modern cities developed from new technologies used during the Industrial Revolution.
d. Modern cities developed as a result of technological innovations developed during the Roman Empire.
4. According to the video, which statement best describes how cities will need to develop in future?
a. Future cities will increasingly rely on innovative building techniques.
b. Future cities will need to expand their transportation networks in diverse and unique ways to provide service over large areas for a high volume of passengers.
c. Future cities will need to provide creative and diverse solutions to sanitation, food, and education, including approaches such as vertical residences.
d. Future cities will resemble modern cities, except that approaches to food production will need to become much more efficient.

b. The development of agriculture, followed by the development of techniques such as irrigation and soil tilling

2. b. The development of agriculture, followed by the development of techniques such as irrigation and soil tilling.

3. a. Modern cities developed soon after agriculture was developed.

4. c. Future cities will need to provide creative and diverse solutions to sanitation, food, and education, including approaches such as vertical residences.

2. To find the answer to this question, you can watch the video mentioned in the prompt. The video explains the factors that made semipermanent and permanent villages possible. By watching the video, you will find that the development of agriculture, followed by the development of techniques such as irrigation and soil tilling, made semipermanent and then permanent villages possible. So, the correct answer is option b.

3. To answer this question, you need to have some knowledge of history. Modern cities first appeared after the development of agriculture. So, the correct answer is option a.

4. The answer to this question can be found by watching the video mentioned in the prompt. The video discusses how cities will need to develop in the future. By watching the video, you will find that future cities will need to provide creative and diverse solutions to sanitation, food, and education, including approaches such as vertical residences. So, the correct answer is option c.