Question

the density of ocean water is dependent on which of the following?
temperature
salinity
temperature and salinity
temperature, salinity, and light penetration
question 6
which of the following is true of the hottest stars?
they are the least massive.
they include the earth’s sun.
they are the brightest stars.
they are the farthest from the earth.

Explanation:

• For the first question: Ocean water density is affected by temperature (warmer water is less dense) and salinity (higher salinity makes water denser). Light penetration does not directly affect density.
• For the second question: Hotter stars are generally more massive (not less), the Sun is a medium - temperature star, and hotter stars are brighter (based on stellar physics principles like the Stefan - Boltzmann law which relates temperature and luminosity). Distance from Earth is not directly related to a star's temperature.

Answer:

• First question: temperature and salinity
• Second question: They are the brightest stars.