Which statements accurately describe the doppler effect? check all that apply
it is used to learn hout the behavior of the universe
it was used by hubble to measure velocities of galaxies
it indicates galaxy motion through light wavelengths,
it indicates a galaxy moving toward earth through red shift
it indicates a galaxy moving away from earth through blue shift

Option (1), (2) and (3).

Explanation:

Doppler effect may be defined as the change in wavelength due to the the movement of sound or radiowaves travels from the object. The frequency remains same if the distance between the receiver and sender's electromagnetic wave distance is same.

Doppler effect helps to learn about the universe behavior. Hubble used the Doppler effect to study the velocity of galaxy. The galaxy motion can be indicated by the wavelength and light.

Thus, the correct answer is option (1), (2) and (3).

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c

answer transpiration;