An object's shadow was observed and measured at different times of the day. The data was recorded in the chart below. How does the data provide evidence that the sun is changing position in the sky throughout the day?

Yes, the data provides evidence.

Explanation:

The data provides evidence of changing in length of object's shadow at different times of the day which indicates that the sun is changing position in the sky throughout the day. At the sunrise and sunset, the length of shadow is highest as compared to other times of the day while on the other hand, at the afternoon when the sun is present on the head, the shadow's length is the lowest. So we can say that the sun is changing position in the sky throughout the day.

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.