Answer:B most of the theories he describes are based on characteristics of Mars’s surface.
Explanation:
The last one I couldn’t see it that clearly but it haves to be the last one
<span>When a whale dies, it's multiple tonne body will drop down to the ocean floor and be a great food source to all the sea creatures in the lower depths of the waters. Hope this helps you!
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<span>For the first time in decades, Baby Boomers have been outnumbered by another group—the Millennials.</span>
