Is after the underlined word? If so, it'd be a preposition. It's followed by a noun.
Answer:
A very tall and older man greeted me. I don't know
Answer:
I would help the group with three families.
Explanation:
The seniors, sad as this might sound, have already lived their lives. The group of young, strong people would seem enticing, but why save yourself if you could save others? The three families with young children still have so much to offer the world.
The central idea of the text is to inform about the problems and solutions for solar energy production faced by Elon Musk.
<h3>“How Tesla’s Batteries Can Change the Solar Power Game”</h3>
The main idea of the text is to talk about "The dream of a solar-powered society has tormented us for decades." however, there are several problems to be faced "Grid operators need a way to store the sun's energy to smooth out the supply during the night and when it's cloudy."
But great minds are working to solve these problems. "Even though the panels and storage are spread across many rooftops, they are effectively roped together into a single 10-megawatt power plant that APS can control.
With this information, we can conclude that the text aims to inform the advances in technologies for obtaining clean energy.
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