Stippling is the drawing technique!
Answer:
I'm sure you've heard teachers stress the importance of grade 11 quite often, Well, ... You can look at Grade 11 as a trial run for your Matric year because most of the ... That's right Choma, you can use your Grade 11 report to apply for university. ... Tertiary education is expensive and unfortunately, not everyone can afford it.
Explanation:
Yes it's true, but that doesn't last very long. It creates a compression of the molecules during exactly half of each vibe, and during the other half, it leans the other way, and the molecules spread out in what's called a "rarefaction" a region of lower-than-normal pressure. This 'train' of compressions and rarefactions is what travels through the air, away from the vibrating object, and it's what some people often call a "sound wave".