Which best describes sienna's error?
the descriptions for intake and ignition should be switched with one anothe
during compression, temperature does not increase, it decreases.
compression happens before ignition, so it should be step 2.
the piston moves down, not up, during the exhaust step.
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The sentence which best describes the Sienna’s error is during compression, temperature does not increase it decreases.

Explanation:

There is decrease in the temperature when the process of compression happens. This is because there is decrease in the volume of the gas. There is decrease in the number of constants which helps in keeping the pressure constant and the reduces the temperature. It helps in the gas to compress easily.

The correct answer is C. Compression happens before ignition, so it should be step 2.

Explanation:

i believe that dan is so anxious because he dose not know what awaits him when he gets there. but i dont know to be honest

depends on your school

when i was in high school i took ap biology my senior year and it was the hardest one for me because my teacher finished the material within the first month of school and then went on to doing advanced college level it was horrible. but at a nearby school ap biology was one of the easier aps. also, it depends on what you are interested i like math a lot so ap calculus was easier for me than most but i hate history so ap us government was harder for me than most.