Group 7A, the Halogens contain metalloids such as Astatine.
Answer:
Cost Issue
Explanation:
Their funding hasn't been secured to repurpose the land.
Recall the endosymbiosis hypothesis and recall endosymbiosis. Remember that the very first cell was a prokaryotic cell. Which engulfed chloroplast precursors and mitochondria. We all come from these cells. And how we evolved over time shows the relationship. I'm a bio major hope I helped
