You can re-arrange your sentence in this way:
In order to identify the development of tornadoes, few required conditions can be described.
Answer:
Two days later, Leo doesn’t see Stargirl at school until after lunch. But after lunch, he hears a laughing voice asking, “What do you have to do to get somebody’s attention around here?” When he looks, he sees a girl in jeans, sandals, makeup, and hoop earrings. When Leo incredulously asks, “Stargirl?”
Explanation:
It is because of how she looks.
The best revenge is to just happily move on and let Karma do the rest.
Answer:
The tone that Portia uses when speaking to Brutus is earnest
Explanation:
Portia is worried about her husband and whatever is deeply troubling him, as she talks to him, she uses words that demonstrate the importance that she gives to the situation, and how interested she is in discovering what secrets are hidden in her husband mind, this can describe the tone as earnest.