Based on the above phylogenetic tree, which two species are the most closely related?

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes

What is the term for a water wave that is created by an underwater earthquake?

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?