1. For which of the following activities might you want to hire a chemist?A. testing a sample of water from a well
2. Which of the following procedures involves a physical change in one of the substances?
D. grinding chalk into a fine powder
3. You have three molecules of glucose (3C6H12O6). How many oxygen atoms do you have?
C. 6
Answer:
I think it is C but I'm not 100% sure
Answer:
False. Closing mines has economic impact on communities.
Explanation:
- Economy is impacted by any hindrance in activities of production,distribution and consumption of any good or services.
- So, closing mines too has great impact in economic sector of that certain area.
- In many countries, mining has been the major source of economy and job opportunities for the community people.
- Closing these mines results in downfall of economy and increased unemployment in that particular community.
Given what we know, we can confirm that the biome is in fact an open system due to the interactions between the biosphere, atmosphere, lithosphere, and hydrosphere.
<h3>What is the biome?</h3>
- The biome is the collection of air, soil, water, and all the organisms that reside within these ecosystems.
- In order to describe an open system, we say that the system must have external interactions.
- A biome is an open system because it has both internal and external interactions, such as with asteroids in space.
- The internal interactions include the ones between the<em><u> biosphere, atmosphere, lithosphere, and hydrosphere.</u></em>
- A prime example is the movement of water through each of the spheres.
Therefore, since each part of the biome interacts with each other as well as with external sources such as space, we can confirm that it complies with the definition of an open system.
To learn more about open systems visit:
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