Which in counting the age of a tree? a. rings seen in the stemb. height of the treec. width of the tree

Which gas found in the earth's atmosphere greatly impacts the daily range of temperature on earth. a) oxygen b) hydrogen c) nitrogen d) water vapor

During the process of two rails or sides break apart and attract new nucleotide bases to form a new and complete strand.

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass