First option.
The male tails are more attractive because of their long feathers , meanwhile the female tails are shorter than expected!
Answer:
Atomic Particles
Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).
Answer:
Any thing that occupied volume and mass in air is known as matter
B
Electrons are found in shells or orbitals that surround the nucleus of an atom
Answer:
A Newman projection, useful in alkane stereochemistry, visualizes the conformation of a chemical bond from front to back, with the front atom represented by a dot and the back carbon as a circle. The front carbon atom is called proximal, while the back atom is called distal.
