The perihelion is the point at which earth is closest to the sun, and the aphelion is the point at which earth is farthest away. based on this information, which statement is true? a. earth moves faster along its orbit during perihelion because of the sun's gravitational force. b. perihelion marks the beginning of summer, when earth is closest to the sun. c. the longest day of the year occurs during perihelion due to a lunar eclipse. d. the moon rotates faster during perihelion because of earth's gravitational force.

The correct answer is option B which is when Earth is on perihelion, it is the beginning of summer.

B. Perihelion marks the beginning of summer, when Earth closest to the Sun.

Explanation:

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

the correct answer is c   with the systems