What type of Literary Devices is this passage and provide an explanation “A single flow’r he sent me, since we met.
All tenderly his messenger he chose;
Deep-hearted, pure, with scented dew still wet-
One perfect rose.”

By the admiring tone that the writer has for the gift that she/he received, it is clear that there's a lot of imagery. The writer also described the rose as "perfect", "scented dew still wet", and "pure", which further supports the idea that he/she is describing the gift.

the answer for apex is the lowest

a.   mass number from atomic number