All

Question 1

bustling

Answer 1

full of activity

Question 2

to brim

Answer 2

be full to the point of overflowing
«my eyes brimmed with tears»
«large tears brimmed in her eyes»
«he is brimming with ideas»

Question 3

to harness

Answer 3

control or make use of, especially to produce energy

«attempts to harness solar energy»

Question 4

hotbed

Answer 4

an environment promoting the growth of something, especially something unwelcome
«the country was a hotbed of revolt and dissension»

Question 5

to foster

Answer 5

1. encourage the development of (something, especially something desirable)
   «the teacher’s task is to foster learning»
2. bring up, raise (a child that is not one’s own by birth)
   «a person who would foster Holly was found»

Question 6

zeitgeist

Answer 6

the defining spirit or mood of a particular period of history as shown by the ideas and beliefs of the time
«the story captured the zeitgeist of the late 1960’s»