People dive fast. Many accidents happen.

→ The faster ……………………………………………………………………

The faster people dive, the more the number of accidents that will happen.

Explanation: Quick ascents can lead to decompression illness. During a dive, a diver’s body absorbs nitrogen gas. The nitrogen gas compresses due to water pressure following Boyle’s Law, and slowly saturates his body tissues. If a diver ascends too quickly, the nitrogen gas in his body will expand at such a rate that he is unable to eliminate it efficiently, and the nitrogen will form small bubbles in his tissues. This is known as decompression sickness, and can be very painful, lead to tissue death, and even be life threatening. In a worst-case scenario, a diver who ascends quite rapidly may rupture small structures in his lungs known as alveoli. In this case, bubbles may enter his arterial circulation and travel through his body, eventually lodging in blood vessels and blocking blood flow. This sort of decompression illness is called an arterial gas embolism (AGE), and is very dangerous. A bubble may lodge in an artery feeding the spinal column, in the brain, or in a host of other areas, causing loss or impediment of function. Maintaining a slow ascent rate greatly reduces the risk of all forms of decompression illness.

i have read the novel roll of thunder hear my cry by mildred d. taylor.

1. this isn't like any other story i've read or watched because it is about a black family in mississippi right after slavery in the u.s. had become illegal. most of the novels i have read were about slavery. another point is that the author of the novel used symbolism in a way i haven't seen before. for example she uses thunder as something negative meaning something bad will happen. but by the end of the novel, she made thunder a good thing.

2.   one character that changed during the novel was stacey. stacey is the eldest child of the black logan family. around the begging of the novel stacey was avoiding the white boy jeremy simms. he had a dislike for jeremy's family. but at the end of the novel stacey began to like jeremy.

3. the author starts the novel with the problem that the children of the logan family have to avoid the white kid school bus while walking to school.