Which type of earth scientist is most likely to directly study the impact a meteor could have on Earth’s surface?

“in 1492 columbus sailed the ocean blue” is an example of: a)explicit memory b) procedural memory c) semantic memory d)episodic memory

Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun

What molecules will be best used to compare different species with the exact same sequence of amino acids? why would two species have the same protein even if the molecules in question is different? (hint: transcription to translation to protein).