Answer:
Scientist have learned by studying seismic waves that the earth has liquid in its outer core. They also can predict if a earthquake might happen in a spot in the next hundred years or so.
Analogy, in biology, similarity of function and superficial resemblance of structures that have different origins. For example, the wings of a fly, a moth, and a bird are analogous because they developed independently as adaptations to a common function—
THis is the link i used
flying.https://www.britannica.com/science/analogy-evolution
Atoms which lose a single electron are cations with charge of +1. (has one valence electron)
(group 1 element) Fluorine is a group 17 element, Magnesium is a group 2 element, Boron is a group 13 element, and cesium is a group 1 element.
Answer: cesium :)