Answer:
The correct answer is: How does electromagnetic force works.
Explanation:
In this excerpt, the author tries to understand how does electromagnetic force works.
We can conclude that from some statements he uses to explain his experiment.
e.g. <em>Electromagnetic force sounds very complicated, but I wanted to understand how it works.</em>
e.g.<em> This experience helped me understand electromagnetism and the way it works.</em>
<em></em>
Answer:
The primary difference between the two words is that wisdom involves a healthy dose of perspective and the ability to make sound judgments about a subject while knowledge is simply knowing. Anyone can become knowledgeable about a subject by reading, researching, and memorizing facts. ... Wisdom is knowing when to say it.”
Explanation:
Explanation:
Several earlier studies have shown the presence of more dust and allergens in carpets compared with non-carpeted floors. At the same time, adverse effects of carpeted floors on perceived indoor air quality as well as worsening of symptoms in individuals with asthma and allergies were reported. Avoiding extensive carpet use in offices, schools, kindergartens and bedrooms has therefore been recommended by several health authorities. More recently, carpet producers have argued that former assessments were obsolete and that modern rugs are unproblematic, even for those with asthma and allergies. To investigate whether the recommendation to be cautious with the use of carpets is still valid, or whether there are new data supporting that carpet flooring do not present a problem for indoor air quality and health, we have reviewed the literature on this matter. We have not found updated peer reviewed evidence that carpeted floor is unproblematic for the indoor environment. On the contrary, also more recent data support that carpets may act as a repository for pollutants which may become resuspended upon activity in the carpeted area. Also, the use of carpets is still linked to perception of reduced indoor air quality as well as adverse health effects as previously reported. To our knowledge, there are no publications that report on deposition of pollutants and adverse health outcomes associated with modern rugs. However, due to the three-dimensional structure of carpets, any carpet will to some extent act like a sink. Thus, continued caution should still be exercised when considering the use of wall-to-wall carpeted floors in schools, kindergartens and offices, as well as in children’s bedrooms unless special needs indicate that carpets are preferable.
Keywords: carpets, indoor air quality, health impact
I believe the answer is D. This is because the ":" symbol is used to list what the previous phrase was describing.
Ask google . Maybe you can ask
