Answer: keep an open mind
Explanation:
Tetravalent
We have already seen an example of how a covalent bond can form between two hydrogen atoms producing molecular (H2) as opposed to the atomic form of hydrogen. ... As in all its compounds and its elemental forms, carbon is tetravalent, which means that it always forms four bonds.
Stylistically, the British artist David Hockney has been described as having roots in pop art, using highly graphic style referential to that of advertising. Linearly his mark-making is quite clean and sharp; examples of line type are contour lines and cross contour lines, which may come in the form of vertical, horizontal, curved, zigzag; Hockney uses throughout his art an array of these lines to create different effects.
Answer: the correct option is A: to speak
Explanation:
The melodic element of twentieth-century music can be described as Imitative of instrumental character, with the techinal advances new approaches are given and the music language start changing, human voice is treated as an instrument , the ring melodies appear, and musicians start exploting the value of history and culture and including them to music.
