In nonrelativistic classical mechanics, a closed system is a physical system that doesn't exchange any matter with its surroundings, and isn't subject to any force whose source is external to the system. A closed system in classical mechanics would be considered an isolated system in thermodynamics.
Answer:
The United States has many landforms,
Explanation:
There are swamps and industrial areas, there are giant flatland and huge mountains, there is super dry land and freezing land. Because of the U.S's size and position, it has had the opportunity to provide a home to many people because of these land distinctions.
-Municipal and county governments
-Hospital districts
-School districts
Hope this helps! :D
~PutarPotato
Answer:
Explanation:
advantages
1. Interviews can be done face to face or over the phone, allowing the researcher to ask further questions to gain more in-depth information. Also, it allows researchers to collect people’s ideas, opinions, values, and beliefs about a certain topic. The disadvantage of using an interview is that interviews can be time consuming for both researchers and interviewees. It can be difficult to arrange a suitable place and time between researchers and interviewees that usually results in small numbers of people interviewed due to time restrictions. Moreover, it limited amount of data collected may not accurately reflect the views of the wider population
Plants and animals have to be able to cope with the environment. (An animal that is good at keeping in heat would not do well in a desert.)
