Eratosthenes determined the circumference of Earth by conducting an
experiment. Put his steps in order as they correlate to the scientific method.

Conduct an Experiment: Measure the angle of shadow at high noon
in Syene and Alexandria,
Make Observations: In Syene, the sun's rays are vertical at noon.

At
t the same time in Alexandria, the rays are 7.2 degrees from the
vertical.

Draw Conclusions: The angle represents the amount Earth curves
between Syene and Alexandria. This is 1/50 of a complete circle and
1/50 of Earth's circumference.

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

The graph below compares the rates of reaction of a burning candle and an exploding firework. comparing chemical reactions what can you conclude from the graph? the reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires less energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs more rapidly than the reaction that causes a candle to burn. mark this and return

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.