Answer:
C) The author tells about seeing Russell as a grown-up and accepting him as is. That is the detail that best explains how the author develops the theme over the course of the text. In ¨About Russell¨ the author starts describing how his brother used to be as they were children and continues describing how he gradually changed as they grew up. She had a vision for what her brother would become which was different from what he actually became. But by the end of the text she states that a ¨A grown man, Russell simply will not do what he doesn’t want to¨. That indicated that he could not be forced to change and therefore she accepted him as he was indicated by the statement ¨...my family simply accepts him as is¨
That's for part A
And part B is D I guess
Explanation:
Although the economy began to develop at first, in 1920, a civil war started which caused many bad things for the Russian economy. The government began obsessed with overtaking the westerners and this <span>caused the economy to suffer and caused economic disintegration, isolation, and famine.</span>
If you value outdoor recreation, the career that might be good for you is adventure travel writer.
There types of writers travel all over the world experiencing different countries and various adventurous activities. They later on write about them in a blog or a traveling book they may publish. This is quite suitable for a person who enjoys outdoor recreation.
There's not always an adjective in a prepositional phrase, but if there is one, it's the word before the noun.
EX: He walked through the large entrance.
Prepositional phrase- through the large entrance
Preposition- through
Object of the preposition (noun)- door
Adjective- heavy
Hope this helps!

The harmonic frequency refers to the resonant frequency that is an integral multiple of the fundamental frequency, harmonics are usually simple sinusoidal oscillation at a single frequency. where as Resonance frequency are frequencies that are not necessarily sinosudal or integral multiple of fundamental frequency and it may have complex oscillations made up of multiple harmonics ~
It's like if you play a piano with a single key, it will show harmonic frequency, but if you use multiple keys at a time it may show Resonance.