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Alona [7]
3 years ago
6

raveling at high altitudes_________ vehicle engine performance when compared to operating the same vehicle at sea level. a) Incr

eases b) Does not affect c) Lessens d) None of the above 2 Question 2 Remember to cross railroad tracks only when: a) Signs and signals have just stopped flashing b) It is safe c) It is safe and permitted by signs and signals at the intersection d) The intersection has no train coming
Social Studies
1 answer:
NARA [144]3 years ago
6 0

Answer: lessens

Explanation:

When engines run on higher altitudes it means they are running at a lower power. Engines operate at a lower power at high altitude due to a reduction in oxygen which now makes the vehicle perform in a slow manner due to a reduction in air to power the internal combustion engine.

2) Remember to cross the rail track when it is safe and permitted by signs and signals. This is the best time to cross the rail track.

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