Answer:
Explanation:
Our sales staff collected the client's details. Active voice
The subject noun "staff" did the action verb "collected" on object "client details"
The package was delivered by a courier. Passive voice
The object "package" experienced an action "was delivered" by subject "courier"
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
C sounds correct..
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Answer:
Explanation:
A note on classification: By any system of measurement, Paris is the biggest city in France. That much is clear; but after that, classifying French towns and cities in order of size is an art, rather than a science, since the results depend very much on the criteria used. Different French statistical data use different yardsticks, and "cities" can be classed in several different ways, notably by "urban area" (aire urbaine) , by "urban unit" (unité urbaine), or by borough (commune).
These terms are defined as follows:
"Urban area" - A metropolitan area, i.e. the whole area which can be viewed as a coherent economic/employment unit.
"Urban unit" - The "conurbation", the densely populated heart of that area, or "agglomération".
"Commune" - A borough, the basic unit of local administration in France, with its municipal council.
To make a comparison with London, "Greater London" would be an urban area, the "London postal area" would be an urban unit, and the "City of London" would be a commune.
