What does d represent in the equation below? m = M + 5 log(d/10) A. spectral class B. distance to a star C. diameter of a star D. apparent magnitude (Earth/Space Science) I need help because I don't understand this one.

8. is a technique that uses the images from several telescopes to produce a single image. a. reflection b. interferometry c. radiation d. refraction

Match the term with the corresponding definition. 1. mountains 2. geographic position 3. latitude 4. oceans 5. pressure 6. land vs. water a. affects temperature by influencing the seasonal range of solar intensity b. despite being at similar latitudes, continental locations have a larger seasonal range in temperature than waterfront locations c. local topography predict temperature and precipitation d. thinner air less able to hold heat makes climate colder e. sea surface temperature influences air temperature and evaporation rates f. affects temperature, moisture, and storm tracks

What man-made lake was created by the building of the hoover dam?