Answer:
Sound is a sequence of waves of pressure which propagates through compressible media such as air or water. (Sound can propagate through solids as well, but there are additional modes of propagation). ... Independent of the motion of sound through the medium, if the medium is moving, the sound is further transported.
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Greenhouse gasses<span> trap heat, or energy, and keep it in the Earth system so that the Earth and atmosphere become warmer. </span>Greenhouse gasses<span> absorb what </span>scientists call<span> infrared radiation. ... The main </span>greenhouse gasses<span> we know about in our atmosphere include carbon dioxide, water vapor, methane, nitrous oxide, and ozone. So its B</span>
Answer:
How to write a conclusion
An effective conclusion is created by following these steps:
Restate the thesis: An effective conclusion brings the reader back to the main point, reminding the reader of the purpose of the essay. However, avoid repeating the thesis verbatim. Paraphrase your argument slightly while still preserving the primary point.
Reiterate your supporting points: Aside from restating your thesis, you should also reiterate the points that you made to support it throughout the paper. But instead of simply repeating the paper's arguments, summarize the ideas.
Make a connection between your opening and closing statements: It's often effective to return to the introduction's themes, giving the reader a strong sense of conclusion. You can accomplish this by using similar concepts, returning to an original scenario or by including the same imagery.
Provide some insight: Your conclusion should leave the reader with a solution, an insight, questions for further study or a call to action. What are the implications of your argument? Why should anyone care? You'll want to answer these types of questions here and leave your audience with something to think about.
Explanation:
D. Biological activity
Explanation:
The earth's atmosphere became oxygen rich as a result of biological activities. Early earth atmosphere was toxic one and in its reducing state.
- The activities of micro-organisms such as cyanobacteria led to the production of oxygen.
- These organisms manufacture their food in the presence of sunlight and water in the process of photosynthesis.
- The bye product of this reaction is oxygen.
- The intense presence of these living organisms led to the surge in atmospheric oxygen.
Learn more:
Photosynthesis brainly.com/question/4216541
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These are all phases of cells multiplying without this we would all be one cell organisms
