Answer:
They can be seen from a distance of 4.372 kilometers.
Explanation:
Using the Reyligh creterion for diffraction through a circular aperture we have
where symbol's have their usual meaning
thus applying values we get


Since they are made of different chemical make ups, boiling point and density they will most likely be in different groups on the periodic table.
Answer:
carbon dioxide plays an important part in vital plant and animal process, such as photosynthesis and respiration.
Explanation:
Answer D. The pitch is in the frequency.