Answer:
B. External validity
Explanation:
External validity- It refers to the extent through which a conclusion made from the research study can be generalized to the person outside the study.
Generalization is of three types: environmental, temporal, and population.
Threats to external validity:
1. History effects & maturation.
2. Selection biases.
3. Constructs, confounding, and methods.
4. The 'experimental world' versus the 'real world'.
The lines: "Full many a flower is born to blush unseen,/And waste its sweetness on the desert air." refer to those people whose abilities are not publicly recognized. The correct option among all the options that are given in the question is the third option or option "c". I hope this answer comes to your help.
It’s should be the second choice or int this case b
Answer: Permanent magnets have their atoms aligned all the time. Temporary magnets have their atoms aligned only while under the influence of a strong external magnetic field. Overheating a permanent magnet will rearrange its atomic structure and turn it into a temporary magnet.
Word cited: https://sciencing.com/difference-permanent-magnet-temporary-magnet-8180685.html
Explanation: plz mark brainliest
It is ghost town so i the day would be very quiet and very easy to learn more than a public school.also will would not have a lot of supplies to learn for the day. Also, the lunch would be nasty so you would be hungry the whole day and you may would need gas mask since theres a lot of pollution.
