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SCORPION-xisa [38]
3 years ago
8

In an actual engine, the top of the cylinder is covered by the?

Advanced Placement (AP)
1 answer:
Softa [21]3 years ago
4 0
Answer: B. Valves

The intake valve allows oxygen laden air to be drawn into the cylinder. The air mixes with the fuel and combusts in the cylinder to deliver power.
The exhaust valve opens to expel combustion products before the next cycle begins.
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  • The development of slavery in the British colonies was largely shaped by the demand for labor. As the colonies grew and became more economically prosperous, the demand for labor increased. This led to the importation of more slaves from Africa. By the time of the American Revolution, there were an estimated 500,000 slaves in the British colonies.

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The British North American colonies were well-established communities that were tightly linked to the Atlantic and Caribbean commerce networks. Although religious ideals drove many settlers, others regarded the colonies as a chance to buy their own land, work for themselves, or strike it rich.

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Answer with Explanation:

The <em>peak, trough, recession and recovery</em> are stages of the "Business Cycle." They can be represented in a line graph as points that represent individual stages. Each can tell what a country's economy is experiencing in terms of fluctuations happening in economic activities.

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The trough is the lowest point in the graph. This marks the<em> end of depression.</em> This means that soon, the<em> economy will try to recover.</em>

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The recovery is that point on the graph that goes up following the trough. This stage is marked by increase in demand and production. It is considered to be the end of the business cycle.

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