A. Urban renewal
Urban renewal is the set of plans and activities to upgrade neighborhoods and suburbs that are in a state of distress or decay.
Yes they should because if they are more active than they can be healthier and perform better in school
Answer:
Explanation:
Given
Radius of curvature=20 m
Speed of cyclist=17.5 m/s
we know that velocity during a turn is given by

where v=speed
r=radius of curvature
=angle of banking
=coefficient of friction
g=acceleration due to gravity
here 
thus




In the Langer et al. (1978) copy machine study, participants allowed someone to go ahead of them even when they gave an excuse that didn't make sense. This study was a demonstration of<u> </u><u>the</u><u> automaticity</u><u> of </u><u>social behavior.</u>
<u></u>
<h3>What is Social Behavior?</h3>
Social behavior is defined as interactions among individuals, normally within the same species, that are usually beneficial to one or more of the individuals. It is believed that social behavior evolved because it was beneficial to those who engaged in it, which means that these individuals were more likely to survive and reproduce.
Social behavior serves many purposes and is exhibited by an extraordinary wide variety of animals, including invertebrates, fish, birds, and mammals. Thus, social behavior is not only displayed by animals possessing well-developed brains and nervous systems.
Therefore, we can conclude that this study was a demonstration of<u> </u><u>the</u><u> automaticity</u><u> of </u><u>social behavior.</u>
Learn more about Social Behavior on:
brainly.com/question/3951300
#SPJ4
Animals are used in experiments because they have somewhat similar structures as humans so they can gauge a human's reaction to something.
Also because the animals can't say no. :(