Does the sound wave above experience a change in pitch or loudness? Why? (pls help i spent all my points so i only have 15 left ಥ_ಥ

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?

What if it is did darwin used to support his theory of evolution