The correct answer is B. Magnesium burns
Explanation:
Burning is considered a chemical process because this changes the properties and identity of substances. Moreover, if a material burns this implies the material or element is flammable or can ignite, and this is a chemical property because it is related to a chemical reaction and this property can only be observed through a chemical reaction. This is the opposite of properties such as color, state, or heat conductivity that can be studied without a chemical reaction, and are physical properties.
Https://www.sss.gov/Registration-Info/Who-Registration
Under current law, all male U.S. citizens<span> between 18–25 years are </span>required to register<span> with </span>Selective Service<span> within 30 days of their 18th birthday. In addition, non-U.S.-</span>citizen<span>men between the ages of 18 and 25 (inclusive) living in the United States must </span>register<span>.
I linked a site that may be helpful. But that is also what I have to say. Hope that helps! :)
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Answer: A student, Amara, plans to use the survey data to create a visualization and short summary of students' plans for college. First she wants to learn more about how the data was collected. Of the following things she might learn about the survey, which are the most likely sources of bias in the results based how it was collected:
- She learns that the survey administrators only asked a representative sample of students, rather than even student in each state .
- She learns that responses were collected only by mobile app
.
- She learns the survey was available to complete in both digital and paper form
.
- She learns that the survey was only given to students with scores in the top 10% on the PSAT
.
Explanation:
Conditions for choosing the participants in surveys can affect responses. Collecting survey responses by using an app introduces inclusive bias into the survey. This is when a group is selected for convenience and is not at all a random selection. Using an app has limited the participants to people who use the app.
Asking only the students who scored highly in tests also skews the neutrality of the survey. This introduces an omission bias by excluding a majority of students.
Answer:
D
Explanation:
Saving junk suggests that Armand is paranoid.
Answer:
elvis
Explanation:
elvis stamps are highly collected and even during the time elvis was around his products were sought after so much so that his agent even sold I hate Elvis merchandise because Elvis was such a huge topic in that time
