Answer: B, C
Explanation: Scientists use radiometric dating of meteorites and analyze the impact craters on planetary body surfaces to learn about the age of the solar system and its planetary bodies.
Currently we understand that long-term potentiation, also called LTP, and memory are deeply interconnected. We know that memory is based on a neurochemical basis and that long-term-potentiation is one of the proposed and possible mechanisms that explain how memory works.
There are 4 nucleotides. Guanine (G), Cytosine (C), Thymine (G) and Adenine (A).
C and T are called pyrimidines, and are longer than G and A.
G and C connect using 3 hydrogen bonds, but A and T bond using only 2.
A salt is an ionic compound which needs a positive charge ion and a negative ion charge to form a salt.This means that the pair of element should be a metal and non-metal.This is simply because metal atoms tend to lose negative charge electrons and form positive ions while non-metals tend to receive the electrons from the metal atom to form negative charge ions.So answer is Cl and Li.
The puzzle shapes also helped them understand his theory, so did tectonic plates, I gave you all I know! I wish I could help more but I haven’t learned this stuff in years! I’m sorry! Anyways hope you find out!
